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M100669 ✓ 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,SEAL is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-602-0975, 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
M100669
NSN: 5310-01-602-0975
FSC: 5310
CAGE: 54077 — OSHKOSH AEROTECH, LLC DIV JETWAY SYSTEMS (USA)
SPECIFICATIONS
Part NumberM100669
NSN5310-01-602-0975
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M100669 · 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 16
FS916FEDInterchangeable
interchangeable cross-reference
interchangeable
52-65Interchangeable
interchangeable cross-reference
interchangeable
EEA2Interchangeable
interchangeable cross-reference
interchangeable
01760-0064Interchangeable
interchangeable cross-reference
interchangeable
1246Z1170Interchangeable
interchangeable cross-reference
interchangeable
BB1142BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M100669?
M100669 is a WASHER,SEAL.
What parts can replace M100669?
There are 16 known substitutes for M100669: FS916FED, 52-65, EEA2 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M100669?
M100669 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-602-0975. 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