CS6552 price and stock

CS6552 Details
Register or Sign In to sort your Preferred Distributors to the top of the list!

Authorized Distributors

  • Abracon
  • Analog Devices Inc
  • Arrow
  • Avnet Americas
  • Bisco
  • Chip One Stop
  • ChipNobo Co., Limited
  • Coilcraft
  • ComSIT USA
  • Cytech Systems Limited
  • DB Roberts
  • DigiKey
  • Dynamic Solutions
  • ECCO
  • element14
  • Fairview Microwave
  • Farnell
  • FDH Electronics
  • Flip Electronics
  • Future Electronics
  • GLYN
  • Heilind Americas
  • Interstate Connecting
  • L-com US
  • Maritex
  • Master Electronics
  • Microchip Technology
  • Mouser
  • NAC
  • New Advantage
  • Newark
  • NXP
  • Onlinecomponents.com
  • Pasternack Enterprises
  • PEI Genesis
  • Perfect Parts
  • Powell Electronics
  • PUI
  • RECOM Power
  • Richardson RFPD
  • Rochester
  • RS
  • Rutronik
  • Sager
  • Samtec
  • SiTime Corporation
  • STMicroelectronics
  • TE Connectivity
  • Teledyne e2v
  • TME
  • TTI
  • Venkel Ltd.
  • Verical
  • Waytek, Inc.
  • Wuhan P&S

Independent Distributors

  • Ameya
  • Bristol
  • Chip 1 Exchange
  • Chip Stock
  • Chip-Germany GmbH
  • Component Electronics, Inc
  • Futuretech Components
  • Greenchips
  • IBS Electronics
  • LCSC
  • MacroQuest
  • Neutron USA
  • NexGen Digital
  • Quest
  • SEMICONN
  • Sense Electronic
  • Sensible Micro Corp
  • Shengyu Electronics
  • Unikey Electronic
  • Utmel Electronic
  • Vyrian
  • Win Source Electronics
Show Filters
Select Manufacturer

Update Alert Settings for: CS6552

Select Manufacturer
Which Manufacturer of CS6552 would you like to use for your alert(s)?
  • Please alert me when CS6552 inventory levels are or equal to a quantity of from one of my selected distributors.
  • Also alert me for CS6552 alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.
No pricing information is available at this time
  • Please alert me when the single part price for CS6552 to
    $
    for at least parts from one of my selected distributors.
    Your Pricing Alert is set to expire on .
    Set this alert to expire in Update this alert to expire · Expired on
  • Also alert me for CS6552 alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.

Your part alert has been saved!

Alerts are triggered based off of individual distributors that you choose. Select your distributor(s) below.

Your part alert has been saved!

Register
Password Guidelines

Is at least 8 characters in length

Is at most 256 characters in length

Must include at least 3 of the following:

One lower-case character (a-z)

One upper-case character (A-Z)

One numeric character (0-9)

One special character (!#$%^&*)

Alert is successfully saved for CS6552.
Looks like you've reached your alert limit!  Please delete some alerts or contact us if you need help.
arrow upTOP

No results were found for CS6552.

Similar Parts

Results for a part that might be similar to "CS6552": CS6-50
Note: This part list is based upon the part number. Please verify all specifications of the parts below.

Price shown includes applicable tariffs.

Newark ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
S-1009-KIT-A-CS6503 DISTI # 11J4943
TE Connectivity S-1009-Kit-A-Cs6503/ Pkg |Te Connectivity Raychem S-1009-KIT-A-CS6503 RoHS: Not Compliant Min Qty: 61 Package Multiple: 1 Date Code: 0 Container: Bulk S-1009-KIT-A-CS6503 Part Details 0
  • 50 $103.8000
  • 100 $101.2500
  • 250 $98.7000
$98.7000 / $103.8000 Buy Now S-1009-KIT-A-CS6503 Part Details

DigiKey ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
S-1009-KIT-A-CS6503 DISTI # S-1009-KIT-A-CS6503-ND
TE Connectivity ADHESIVES & SEALANTS Min Qty: 61 Lead time: 22 Weeks Container: Bulk S-1009-KIT-A-CS6503 Part Details Temporarily Out of Stock
  • 61 $85.6579
$85.6579 Buy Now S-1009-KIT-A-CS6503 Part Details
060-CS65084485993 DISTI # 1566-060-CS65084485993-ND
Honeywell Sensing and Control MODEL 31, 10 LBS Min Qty: 1 Lead time: 34 Weeks Container: Bulk 060-CS65084485993 Part Details Temporarily Out of Stock
  • 1 $2,043.7400
$2,043.7400 Buy Now 060-CS65084485993 Part Details

Avnet Americas Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
CS650070R5000B8369 DISTI # CS650070R5000B8369
Vishay Intertechnologies CS650070-8369 .5 B - Bulk (Alt: CS650070R5000B8369) COO: United States of America (the) RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 6 Weeks, 0 Days Container: Bulk CS650070R5000B8369 Part Details 0   RFQ CS650070R5000B8369 Part Details
S-1009-KIT-A-CS6503 DISTI # 890036N001
TE Connectivity - Bag (Alt: 890036N001) COO: United States of America (the) RoHS: Compliant Min Qty: 61 Package Multiple: 1 Lead time: 25 Weeks, 0 Days Container: Bag S-1009-KIT-A-CS6503 Part Details 0
  • 4000 $73.2844
  • 2000 $73.6583
  • 1000 $74.0322
  • 500 $74.4061
  • 61 $87.2329
$73.2844 / $87.2329 Buy Now S-1009-KIT-A-CS6503 Part Details

Mouser Electronics ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
CS6-50 DISTI # 44-CS6-50
PolyPhaser Surge Protection Accessories 50 Foot Long and 6 Inch Wide Copper Strap RoHS: Compliant CS6-50 Part Details 0
  • 1 $1,027.1200
$1,027.1200 Order Now CS6-50 Part Details
CS65010010R00B2172 DISTI # 71-CS65010010R002172
Vishay Intertechnologies Wirewound Resistors - Chassis Mount CS65 100W 10ohm RoHS: Compliant CS65010010R00B2172 Part Details 0
  • 1 $363.5000
  • 10 $305.4800
  • 25 $288.2100
$288.2100 / $363.5000 Order Now CS65010010R00B2172 Part Details
CS6501003K000B6314 DISTI # 71-CS6501003K0006314
Vishay Intertechnologies Wirewound Resistors - Chassis Mount CS65 100W 3Kohm RoHS: Compliant CS6501003K000B6314 Part Details 0
  • 1 $363.5000
  • 10 $305.4800
  • 25 $288.2100
$288.2100 / $363.5000 Order Now CS6501003K000B6314 Part Details
CS6501008K600B1432 DISTI # 71-CS6501008K6001432
Vishay Intertechnologies Wirewound Resistors - Chassis Mount CS65 100W 8.6Kohm CS6501008K600B1432 Part Details 0
  • 1 $363.5000
  • 10 $305.4800
  • 25 $288.2100
$288.2100 / $363.5000 Order Now CS6501008K600B1432 Part Details
CS6501002K400B7226 DISTI # 71-CS6501002K4007226
Vishay Intertechnologies Wirewound Resistors - Chassis Mount CS65 100W 2.4Kohm RoHS: Compliant CS6501002K400B7226 Part Details 0   Order Now CS6501002K400B7226 Part Details
CT-SC-S650-1600-5 DISTI # 504-CTSC-S650-1600-5
Eaton Corporation Current Transformers - Industrial SLD CR CT 1600A, .3% ACCY, 6.3"X6.3" WI CT-SC-S650-1600-5 Part Details 0
  • 1 $208.0800
  • 10 $186.8400
  • 25 $178.9700
$178.9700 / $208.0800 Order Now CT-SC-S650-1600-5 Part Details
CT-SC-S650-3000-5 DISTI # 504-CTSC-S650-3000-5
Eaton Corporation Current Transformers - Industrial SLD CR CT 3000A, .3% ACCY, 6.3"X6.3" WI CT-SC-S650-3000-5 Part Details 0
  • 1 $401.6600
  • 10 $377.3800
$377.3800 / $401.6600 Order Now CT-SC-S650-3000-5 Part Details
CT-SC-S650-2500-5 DISTI # 504-CTSC-S650-2500-5
Eaton Corporation Current Transformers - Industrial SLD CR CT 2500A, .3% ACCY, 6.3"X6.3" WI CT-SC-S650-2500-5 Part Details 0
  • 1 $208.0800
  • 10 $186.8400
  • 25 $178.9700
$178.9700 / $208.0800 Order Now CT-SC-S650-2500-5 Part Details
CT-SC-S650-2000-5 DISTI # 504-CTSC-S650-2000-5
Eaton Corporation Current Transformers - Industrial SLD CR CT 2000A, .3% ACCY, 6.3"X6.3" WI CT-SC-S650-2000-5 Part Details 0
  • 1 $208.0800
  • 10 $186.8400
  • 25 $178.9700
$178.9700 / $208.0800 Order Now CT-SC-S650-2000-5 Part Details
CT-SC-S650-800-5 DISTI # 504-CT-SC-S650-800-5
Eaton Corporation Current Transformers - Industrial SLD CR CT 800A, .3% ACCY, 6.3"X6.3" WI CT-SC-S650-800-5 Part Details 0
  • 1 $213.6800
  • 10 $191.8600
  • 25 $183.7800
$183.7800 / $213.6800 Order Now CT-SC-S650-800-5 Part Details
CT-SC-S650-1200-5 DISTI # 504-CTSC-S650-1200-5
Eaton Corporation Current Transformers - Industrial SLD CR CT 1200A, .3% ACCY, 6.3"X6.3" WI CT-SC-S650-1200-5 Part Details 0
  • 1 $305.1000
  • 10 $286.6600
$286.6600 / $305.1000 Order Now CT-SC-S650-1200-5 Part Details
CT-SC-S650-1000-5 DISTI # 504-CTSC-S650-1000-5
Eaton Corporation Current Transformers - Industrial SLD CR CT 1000A, .3% ACCY, 6.3"X6.3" WI CT-SC-S650-1000-5 Part Details 0
  • 1 $342.8000
  • 10 $322.0800
$322.0800 / $342.8000 Order Now CT-SC-S650-1000-5 Part Details
CT-SC-S650-4000-5 DISTI # 504-CTSC-S650-4000-5
Eaton Corporation Current Transformers - Industrial SLD CR CT 4000A, .3% ACCY, 6.3"X6.3" WI CT-SC-S650-4000-5 Part Details 0
  • 1 $413.3200
  • 10 $388.3400
$388.3400 / $413.3200 Order Now CT-SC-S650-4000-5 Part Details
CT-SC-S650-3500-5 DISTI # 504-CTSC-S650-3500-5
Eaton Corporation Current Transformers - Industrial SLD CR CT 3500A, .3% ACCY, 6.3"X6.3" WI CT-SC-S650-3500-5 Part Details 0
  • 1 $458.5500
  • 10 $430.8300
$430.8300 / $458.5500 Order Now CT-SC-S650-3500-5 Part Details
060-CS65084485993 DISTI # 785-060CS65084485993
Honeywell Sensing and Control Force Sensors & Load Cells - Industrial AL311AV,1A,2U,6AM,9A,15C,30D,53T:MODEL 060-CS65084485993 Part Details 0
  • 1 $2,234.0400
$2,234.0400 Order Now 060-CS65084485993 Part Details

View all 'CS6-50' results from Mouser Electronics

View all 'CS6-50' results from Mouser Electronics

RS (Formerly Allied Electronics & Automation)

Part # Manufacturer Description Stock Price Price Range Buy
CS650-12HK-3Y DISTI # 71405553
Panduit Corp COPPER MECHANICAL LUG, 1 HOLE, 1 BARREL, 600 -1000 KCMIL, 1/2" STUD Min Qty: 1 Package Multiple: 1 Container: Bulk CS650-12HK-3Y Part Details 0
  • 1 $106.1800
  • 5 $97.6900
  • 10 $84.9400
$84.9400 / $106.1800 RFQ CS650-12HK-3Y Part Details
CS650100500R0B8653 DISTI # 71062578
Vishay Dale RESISTOR WIREWOUND Min Qty: 100 Package Multiple: 1 Container: Bulk CS650100500R0B8653 Part Details 0
  • 100 $16.5300
  • 500 $15.2100
  • 1000 $14.5400
$14.5400 / $16.5300 RFQ CS650100500R0B8653 Part Details

TTI ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
CS65007020K00B6811 DISTI # CS65007020K00B6811
Vishay Intertechnologies Wirewound Resistors - Chassis Mount 20K OHM 70W RoHS: Compliant pbFree: Pb-Free Min Qty: 1 Package Multiple: 1 Container: Bulk CS65007020K00B6811 Part Details Americas - 0   Buy Now CS65007020K00B6811 Part Details
CS65010032K00B8947 DISTI # CS65010032K00B8947
Vishay Intertechnologies Wirewound Resistors - Chassis Mount 32K OHM 100W RoHS: Compliant pbFree: Pb-Free Min Qty: 1 Package Multiple: 1 Container: Bulk CS65010032K00B8947 Part Details Americas - 0   Buy Now CS65010032K00B8947 Part Details
CS65007075R00B8228 DISTI # CS65007075R00B8228
Vishay Intertechnologies Wirewound Resistors - Chassis Mount 75 OHM 70W RoHS: Compliant pbFree: Pb-Free Min Qty: 1 Package Multiple: 1 Container: Bulk CS65007075R00B8228 Part Details Americas - 0   Buy Now CS65007075R00B8228 Part Details
CS6501003K000B6314 DISTI # CS6501003K000B6314
Vishay Intertechnologies Wirewound Resistors - Chassis Mount CS65 100W 3Kohm RoHS: Compliant pbFree: Pb-Free Min Qty: 1 Package Multiple: 1 Container: Bulk CS6501003K000B6314 Part Details Americas - 0   Buy Now CS6501003K000B6314 Part Details
CS6501001R800B1018 DISTI # CS6501001R800B1018
Vishay Intertechnologies Wirewound Resistors - Chassis Mount 1.8 OHM 1KW RoHS: Compliant pbFree: Pb-Free Min Qty: 1 Package Multiple: 1 Container: Bulk CS6501001R800B1018 Part Details Americas - 0   Buy Now CS6501001R800B1018 Part Details
CS6500707R000B2037 DISTI # CS6500707R000B2037
Vishay Intertechnologies Wirewound Resistors - Chassis Mount 7 OHM 70W RoHS: Compliant pbFree: Pb-Free Min Qty: 1 Package Multiple: 1 Container: Bulk CS6500707R000B2037 Part Details Americas - 0   Buy Now CS6500707R000B2037 Part Details
CS6501001K500B7226 DISTI # CS6501001K500B7226
Vishay Intertechnologies Wirewound Resistors - Chassis Mount 1.5K OHM 100W RoHS: Compliant pbFree: Pb-Free Min Qty: 1 Package Multiple: 1 Container: Bulk CS6501001K500B7226 Part Details Americas - 0   Buy Now CS6501001K500B7226 Part Details

View all 'CS6-50' results from TTI

Verical Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
CS6-50 DISTI # 91653343
PolyPhaser INTERCONNECT ACCESSORY Min Qty: 1 Package Multiple: 1 CS6-50 Part Details Americas - 4
  • 1 $1,430.0000
$1,430.0000 Buy Now CS6-50 Part Details

Heilind Americas ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
CS6502-000 DISTI # RYCCS6502-000
TE Connectivity GELBOX-25-FB CS6502-000 Part Details Americas - 0 in Stock   Buy Now CS6502-000 Part Details
S-1009-KIT-A-CS6503 DISTI # RYCS-1009-KIT-A-CS6503
TE Connectivity S-1009-KIT-A-CS6503 S-1009-KIT-A-CS6503 Part Details Americas - 0 in Stock   Buy Now S-1009-KIT-A-CS6503 Part Details
890036N001 DISTI # RYCS-1009-KIT-A-CS6503
TE Connectivity Cross Referenced to TE CNTY RAYCHEM - Part: RYCS-1009-KIT-A-CS6503 890036N001 Part Details Americas - 0 in Stock   Buy Now 890036N001 Part Details

Bristol Electronics  

Part # Manufacturer Description Stock Price Price Range Buy
ICS   ICS650R-07IT Part Details 3066   RFQ ICS650R-07IT Part Details
Integrated Circuit Systems Inc   ICS650R-14T Part Details 2500   RFQ ICS650R-14T Part Details
Integrated Circuit Solution Inc   Min Qty: 1 ICS650R-11I Part Details 2020
  • 165 $2.7552
  • 81 $2.9118
  • 39 $3.1362
  • 13 $3.3600
  • 5 $4.3680
  • 1 $6.7200
$2.7552 / $6.7200 Buy Now ICS650R-11I Part Details
Integrated Circuit Systems Inc   ICS650R-14T Part Details 1980   RFQ ICS650R-14T Part Details
ICS   ICS650R07I Part Details 63   RFQ ICS650R07I Part Details
Vishay BLH   Min Qty: 1 CS6501001K500B7226 Part Details 47
  • 21 $147.6000
  • 16 $152.3160
  • 11 $159.2280
  • 6 $166.1400
  • 4 $173.0700
  • 1 $180.0000
$147.6000 / $180.0000 Buy Now CS6501001K500B7226 Part Details
ICS   ICS650R7I Part Details 27   RFQ ICS650R7I Part Details

View all 'CS6-50' results from Bristol Electronics

Quest Components  

Part # Manufacturer Description Stock Price Price Range Buy
Vishay Intertechnologies RESISTOR, WIRE WOUND CS65012575K00B8252 Part Details 52
  • 48 $3.7050
  • 5 $4.2750
  • 1 $8.5500
$3.7050 / $8.5500 Buy Now CS65012575K00B8252 Part Details
Vishay Intertechnologies   CS6501001K500B7226 Part Details 37
  • 22 $180.0000
  • 11 $195.0000
  • 1 $225.0000
$180.0000 / $225.0000 Buy Now CS6501001K500B7226 Part Details

Verical Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
CS6-50 DISTI # 91653343
Polyphaser INTERCONNECT ACCESSORY COO: United States Min Qty: 1 Package Multiple: 1 CS6-50 Part Details Americas - 4
  • 1 $1,430.0000
$1,430.0000 Buy Now CS6-50 Part Details

TME ECIA Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
SFMCS650B-XJ DISTI # STL-SFMCS650B-XJ
Stanley Black & Decker Inc Jigsaw, battery, 18VDC, FATMAX V20, Kind: brushless Min Qty: 1 SFMCS650B-XJ Part Details 1
  • 1 $143.2800
$143.2800 Buy Now SFMCS650B-XJ Part Details

NAC ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
UNC Group CAT6 SLIM ETHERNET PATCH CABLE, 50FT, BLACK, UTP, 28AWG, SNAGLESS RJ45 CONNECTOR RoHS: Compliant Min Qty: 1 Package Multiple: 1 CS6-50F-BLK Part Details 60
  • 1 $21.1100
$21.1100 Buy Now CS6-50F-BLK Part Details

Verical Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
CS6-50 DISTI # 91653343
Polyphaser INTERCONNECT ACCESSORY COO: United States Min Qty: 1 Package Multiple: 1 CS6-50 Part Details Americas - 4
  • 1 $1,430.0000
$1,430.0000 Buy Now CS6-50 Part Details

Interstate Connecting Components ECIA (NEDA) Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
CS6502-000 DISTI # RYCCS6502-000
TE Connectivity GELBOX-25-FB CS6502-000 Part Details 0   Buy Now CS6502-000 Part Details
S-1009-KIT-A-CS6503 DISTI # RYCS-1009-KIT-A-CS6503
TE Connectivity S-1009-KIT-A-CS6503 S-1009-KIT-A-CS6503 Part Details 0   Buy Now S-1009-KIT-A-CS6503 Part Details
890036N001 DISTI # RYCS-1009-KIT-A-CS6503
TE Connectivity Cross Referenced to TE CNTY RAYCHEM - Part: RYCS-1009-KIT-A-CS6503 890036N001 Part Details 0   Buy Now 890036N001 Part Details

Richardson RFPD Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
CS6-50 DISTI # CS6-50
PolyPhaser Interconnect Accesry RoHS: Not Compliant Min Qty: 1 CS6-50 Part Details 0
  • 19 $1,056.3200
$1,056.3200 Buy Now CS6-50 Part Details

Sager ECIA (NEDA) Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
S-1009-KIT-A-CS6503 DISTI # 000000000002278504
TE Connectivity Heat Shrink Tubing & Sleeves S-1009-KIT-A-CS6503 Min Qty: 1 S-1009-KIT-A-CS6503 Part Details 0
  • 1 $102.8700
  • 4 $98.3300
  • 8 $95.5200
  • 16 $92.8600
  • 31 $89.1600
  • 79 $86.8400
$86.8400 / $102.8700 Buy Now S-1009-KIT-A-CS6503 Part Details
CS650-12HK-3Y DISTI # 000000000003919174
Panduit Corp Terminals Copp Mech Lug 1H Straight Floati CS650-12HK-3Y Part Details 0   Buy Now CS650-12HK-3Y Part Details
060-CS65084485993 DISTI # 000000000007412524
HONEYWELL TEST AND MEASUREMENT AL311AV,1A,2U,6AM,9A,15C,30D,53T:MODEL Min Qty: 1 060-CS65084485993 Part Details 0
  • 1 $2,059.6200
$2,059.6200 Buy Now 060-CS65084485993 Part Details

Chip Stock  

Part # Manufacturer Description Stock Price Price Range Buy
Renesas Electronics Corporation PLL Clock Synthesizer Single 20-Pin QSOP Tube ICS650R-01LF Part Details 5755   RFQ ICS650R-01LF Part Details

Flip Electronics ECIA Member • Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
Integrated Device Technology Inc Stock ICS650R-01ILF Part Details 37675   RFQ ICS650R-01ILF Part Details
Integrated Device Technology Inc Stock ICS650GI-41LF Part Details 12827   RFQ ICS650GI-41LF Part Details
Integrated Device Technology Inc Stock ICS650GI-44LF Part Details 7980   RFQ ICS650GI-44LF Part Details
Integrated Device Technology Inc Stock ICS650R-01LF Part Details 6814   RFQ ICS650R-01LF Part Details

DB Roberts Authorized Distributor

Part # Manufacturer Description Stock Price Price Range Buy
KC-S650/M DISTI # SUGKC-S650/M
Sugatsune Kogyo Co Ltd SS 316 HANDLE KC-S650/M Part Details 0   RFQ KC-S650/M Part Details
KC-S650/S DISTI # SUGKC-S650/S
Sugatsune Kogyo Co Ltd SS 316 HANDLE KC-S650/S Part Details 0   RFQ KC-S650/S Part Details

Unikey Electronic Pte Ltd  

Part # Manufacturer Description Stock Price Price Range Buy
VBsemi Electronics Co Ltd In Stock JCS650C-O-C-N-B-VB Part Details 400000
  • 50 $0.7155
  • 100 $0.7035
  • 150 $0.6857
$0.6857 / $0.7155 Buy Now JCS650C-O-C-N-B-VB Part Details
VBsemi Electronics Co Ltd In Stock JCS650F-VB Part Details 400000
  • 50 $1.0219
  • 100 $1.0050
  • 150 $0.9794
$0.9794 / $1.0219 Buy Now JCS650F-VB Part Details

Associated Part Details

Most Popular RF Relays

Most Popular Part Numbers