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PartsTable / COMPONENT / MS91531-4N2B
MS91531-4N2B ✓ Verified by PartsTable
— · 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

The MS91531-4N2B is a the manufacturer industrial component. Key specifications include color: BLACK, width: 2.375 INCHES NOMINAL IN, shank_style: STRAIGHT, skirt_style: RING, shank_length: 0.437 INCHES NOMINAL IN, skirt_design: NONDETACHABLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5355-00-226-4244, 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
MS91531-4N2B
NSN: 5355-00-226-4244
FSC: 5355
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
colorBLACK
width2.375 INCHES NOMINAL IN
shank_styleSTRAIGHT
skirt_styleRING
shank_length0.437 INCHES NOMINAL IN
skirt_designNONDETACHABLE
overall_depth0.500 INCHES NOMINAL IN
shank_diameter1.375 INCHES NOMINAL IN
inside_diameter0.252 INCHES NOMINAL IN
screw_drive_typeHEXAGON SOCKET
style_designatorFLUTED FOILS
attachment_methodSETSCREWS
NSN5355-00-226-4244
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MS91531-4N2B TITLE COMPONENT PN MS91531-4N2B MFR MS91531-4N2B
KEY FEATURES
•
GRIPPING SURFACE CONDITION: SMOOTH
•
SHANK STYLE: STRAIGHT
•
DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE: 0.250 INCHES NOMINAL IN
•
ATTACHMENT METHOD: SETSCREWS
•
OVERALL THICKNESS: 0.875 INCHES NOMINAL IN
•
SCREW DRIVE TYPE: HEXAGON SOCKET
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) SCREW HOLE
•
NOMINAL THREAD SIZE: 0.164 INCHES SCREW HOLE IN
TECHNICAL CHARACTERISTICS (FLIS)
GRIPPING SURFACE CONDITIONSMOOTH
SHANK STYLESTRAIGHT
DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE0.250 INCHES NOMINAL IN
ATTACHMENT METHODSETSCREWS
OVERALL THICKNESS0.875 INCHES NOMINAL IN
SCREW DRIVE TYPEHEXAGON SOCKET
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
NOMINAL THREAD SIZE0.164 INCHES SCREW HOLE IN
SHAFT ACCOMMODATION STYLEROUND
SETSCREW HOLE QUANTITY2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
MS91531-1F1BInterchangeable
interchangeable cross-reference
interchangeable
NASM91531Interchangeable
interchangeable cross-reference
interchangeable
S311-64BBLInterchangeable
interchangeable cross-reference
interchangeable
MS91531-3F2BInterchangeable
interchangeable cross-reference
interchangeable
511617Interchangeable
interchangeable cross-reference
interchangeable
1N4007Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS91531-4N2B?
MS91531-4N2B is a MS91531-4N2B.
What parts can replace MS91531-4N2B?
There are 25 known substitutes for MS91531-4N2B: MS91531-1F1B, NASM91531, S311-64BBL and 22 more. Substitute compatibility should be verified for your specific system.
Is MS91531-4N2B still available?
MS91531-4N2B 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