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Technical Data Sheet
PartsTable / COMPONENT / 12759-00587
12759-00587 ✓ 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 end_item_identification: MRAP - UNIQUE NSN - MAXXPRO CAT I. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-556-6658, 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
12759-00587
NSN: 5310-01-556-6658
FSC: 5310
CAGE: 0Y3H3 — FASTENAL COMPANY DBA FASTENAL CO (USA)
SPECIFICATIONS
end_item_identificationMRAP - UNIQUE NSN - MAXXPRO CAT I
NSN5310-01-556-6658
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12759-00587 · 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONMRAP - UNIQUE NSN - MAXXPRO CAT I
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
33192Interchangeable
interchangeable cross-reference
interchangeable
8PG50Interchangeable
interchangeable cross-reference
interchangeable
6053Interchangeable
interchangeable cross-reference
interchangeable
CA236Interchangeable
interchangeable cross-reference
interchangeable
A3319-2Interchangeable
interchangeable cross-reference
interchangeable
BF-0257Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12759-00587?
12759-00587 is a WASHER,LOCK.
What parts can replace 12759-00587?
There are 9 known substitutes for 12759-00587: 33192, 8PG50, 6053 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12759-00587?
12759-00587 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-556-6658. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026