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PartsTable / COMPONENT / 31311
31311 ✓ Verified by PartsTable
Nathan · 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

POLARIZING KEY,ELECTRICAL CONNEC. Key specifications include overall_width: 15.62 INCHES MAXIMUM IN, overall_length: 20.0 INCHES MAXIMUM IN, special_features: SET OF TWO, part_name_assigned_by_controlling_agency: KIT, RACK SUPPORTS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-00-197-9555, 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
31311
NSN: 5136-00-197-9555
FSC: 5136
CAGE: 41672 — MORSE CUTTING TOOLS DIV OF MORSE CUTTING TOOL CORP (USA)
SPECIFICATIONS
overall_width15.62 INCHES MAXIMUM IN
overall_length20.0 INCHES MAXIMUM IN
special_featuresSET OF TWO
part_name_assigned_by_controlling_agencyKIT, RACK SUPPORTS
NSN5136-00-197-9555
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Nathan POLARIZING KEY,ELECTRICAL CONNEC TITLE COMPONENT PN 31311 MFR Nathan POLARIZING KEY,ELECTRI
KEY FEATURES
•
WIDTH ACROSS FLATS: 1.062 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
THICKNESS: 0.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID HEXAGON NUT
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.562-12 UNIFIED NATIONAL COARSE (UNC)
•
THREAD PITCH DIAMETERS: +0.4990 TO 0.5084 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS1.062 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
THICKNESS0.500 INCHES NOMINAL IN
STYLE DESIGNATORSOLID HEXAGON NUT
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.562-12 UNIFIED NATIONAL COARSE (UNC)
THREAD PITCH DIAMETERS+0.4990 TO 0.5084 INCHES IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.562-12 UNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS1.062 INCHES NOMINAL IN
THICKNESS0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
1945HX1Interchangeable
interchangeable cross-reference
interchangeable
109B1-4Interchangeable
interchangeable cross-reference
interchangeable
A908196Interchangeable
interchangeable cross-reference
interchangeable
7248Interchangeable
interchangeable cross-reference
interchangeable
67AX163Interchangeable
interchangeable cross-reference
interchangeable
1306-BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31311?
31311 is a POLARIZING KEY,ELECTRICAL CONNEC manufactured by Nathan.
What parts can replace 31311?
There are 22 known substitutes for 31311: 1945HX1, 109B1-4, A908196 and 19 more. Substitute compatibility should be verified for your specific system.
Is 31311 still available?
31311 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: July 2026