PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 91831A011
91831A011 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON LOCKING INSERT, nut_style: HEXAGON, head_style: ROUND, nut_height: 0.234 INCHES NOMINAL IN, thread_class: 2B, thread_length: 1.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-463-4929, 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
91831A011
NSN: 5310-01-463-4929
FSC: 5310
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON LOCKING INSERT
nut_styleHEXAGON
head_styleROUND
nut_height0.234 INCHES NOMINAL IN
thread_class2B
thread_length1.000 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
screw_materialSTEEL CORROSION RESISTING
fastener_length1.000 INCHES NOMINAL IN
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
width_across_flats0.375 INCHES NOMINAL IN
NSN5310-01-463-4929
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91831A011 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NUT HEIGHT: 0.234 INCHES NOMINAL IN
•
THREAD CLASS: 2B
•
MATERIAL: STEEL CORROSION RESISTING NUT
•
THREAD QUANTITY PER INCH: 24
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
BEARING SURFACE TYPE: CHAMFERED
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT HEIGHT0.234 INCHES NOMINAL IN
THREAD CLASS2B
MATERIALSTEEL CORROSION RESISTING NUT
THREAD QUANTITY PER INCH24
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE0.190 INCHES IN
END ITEM IDENTIFICATIONMRAP - COUGAR AMBULANCE; MRAP BUFFALO MK2A2
MATERIALPLASTIC POLYAMIDE NYLON LOCKING INSERT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
7620114Interchangeable
interchangeable cross-reference
interchangeable
13484Interchangeable
interchangeable cross-reference
interchangeable
9100-2953Interchangeable
interchangeable cross-reference
interchangeable
91831A011Interchangeable
interchangeable cross-reference
interchangeable
91857A249Interchangeable
interchangeable cross-reference
interchangeable
20055Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 91831A011?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 91831A011?
91831A011 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 91831A011?
There are 7 known substitutes for 91831A011: 7620114, 13484, 9100-2953 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 91831A011?
91831A011 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-463-4929. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 91831A011

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026