PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 91202A242
91202A242 ✓ 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 WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 10.7 MILLIMETERS NOMINAL MM, hardness_rating: 44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM, outside_diameter: 18.1 MILLIMETERS NOMINAL MM, special_features: WASHER FITS SIZE M10 SCREW, style_designator: SPLIT HELICAL-RIGHT HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-533-3780, 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
91202A242
NSN: 5310-01-533-3780
FSC: 5310
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter10.7 MILLIMETERS NOMINAL MM
hardness_rating44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
outside_diameter18.1 MILLIMETERS NOMINAL MM
special_featuresWASHER FITS SIZE M10 SCREW
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentZINC OVERALL
material_thickness2.05 MILLIMETERS NOMINAL MM
end_item_identification5410-01-592-9463; MRAP - COUGAR SABR/TOW; MRAP BUFFALO MK2A2
part_name_assigned_by_controlling_agencyWASHER, LOCK
NSN5310-01-533-3780
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91202A242 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
29818Interchangeable
interchangeable cross-reference
interchangeable
3280060REInterchangeable
interchangeable cross-reference
interchangeable
3280060Interchangeable
interchangeable cross-reference
interchangeable
20-30057Interchangeable
interchangeable cross-reference
interchangeable
91202A246Interchangeable
interchangeable cross-reference
interchangeable
L140127-12Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 91202A242?
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 91202A242?
91202A242 is a WASHER,LOCK.
What parts can replace 91202A242?
There are 26 known substitutes for 91202A242: 29818, 3280060RE, 3280060 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 91202A242?
91202A242 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-533-3780. 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 — 91202A242

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