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Technical Data Sheet
PartsTable / COMPONENT / 12759-00481
12759-00481 ✓ 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,FLAT is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-556-4663, 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
12759-00481
NSN: 5310-01-556-4663
FSC: 5310
CAGE: 0Y3H3 — FASTENAL COMPANY DBA FASTENAL CO (USA)
SPECIFICATIONS
Part Number12759-00481
NSN5310-01-556-4663
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12759-00481 · 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 10
5502-42Interchangeable
interchangeable cross-reference
interchangeable
33619Interchangeable
interchangeable cross-reference
interchangeable
25533R1Interchangeable
interchangeable cross-reference
interchangeable
21739R1Interchangeable
interchangeable cross-reference
interchangeable
23043R1Interchangeable
interchangeable cross-reference
interchangeable
ESP-F-15.321-NPPInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12759-00481?
12759-00481 is a WASHER,FLAT.
What parts can replace 12759-00481?
There are 10 known substitutes for 12759-00481: 5502-42, 33619, 25533R1 and 7 more. Substitute compatibility should be verified for your specific system.
Is 12759-00481 still available?
12759-00481 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