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Technical Data Sheet
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2-5951 — Technical Data Sheet

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— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include length: 8.000 MILLIMETERS NOMINAL MM, material: COPPER ALLOY BODY, drive_type: HEXAGON, plate_type: NEGATIVE AND POSITIVE, head_height: 0.375 INCHES NOMINAL IN, insert_size: M8X1.25 4H. This part is cataloged in the Federal Logistics Information System under NSN 2920-00-640-7886, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
2-5951
NSN: 2920-00-640-7886
FSC: 2920
CAGE: 45320 — PACCAR GOVERNMENT GROUP CO YARROW BAY OFFICE PK (USA)
SPECIFICATIONS
length8.000 MILLIMETERS NOMINAL MM
materialCOPPER ALLOY BODY
drive_typeHEXAGON
plate_typeNEGATIVE AND POSITIVE
head_height0.375 INCHES NOMINAL IN
insert_sizeM8X1.25 4H
cell_quantity1
terminal_typeSOLDER TAB
overall_height3.460 INCHES MINIMUM AND 3.526 INCHES MAXIMUM IN
overall_length0.968 INCHES NOMINAL IN
case_design_typeSEALED
overall_diameter1.268 INCHES MINIMUM AND 1.308 INCHES MAXIMUM IN
NSN2920-00-640-7886
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CABLE ASSEMBLY,SPECIAL PURPOSE,E TITLE COMPONENT PN 2-5951 MFR CABLE ASSEMBLY,SPECIAL
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.750 INCHES NOMINAL IN
•
BOTTOM END COUNTERBORE DEPTH: 0.594 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY BODY
•
OUTSIDE THREAD DIAMETER: 0.625 INCHES NOMINAL IN
•
DRIVE TYPE: HEXAGON
•
HEAD: INCLUDED
•
HEAD END COUNTERBORE DEPTH: 0.375 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.750 INCHES NOMINAL IN
BOTTOM END COUNTERBORE DEPTH0.594 INCHES NOMINAL IN
MATERIALCOPPER ALLOY BODY
OUTSIDE THREAD DIAMETER0.625 INCHES NOMINAL IN
OVERALL LENGTH0.968 INCHES NOMINAL IN
DRIVE TYPEHEXAGON
HEADINCLUDED
HEAD END COUNTERBORE DEPTH0.375 INCHES NOMINAL IN
BOTTOM END COUNTERBORE DIAMETER0.437 INCHES NOMINAL IN
HEAD END COUNTERBORE DIAMETER0.580 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
7.OSCLInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
221-0079InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
26151InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2-5951-7InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2-5951-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10559322InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2-5951?
2-5951 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 2-5951?
There are 11 known substitutes for 2-5951: 7.OSCL, 221-0079, 26151 and 8 more. Substitute compatibility should be verified for your specific system.
Is 2-5951 still available?
2-5951 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026