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PartsTable / COMPONENT / A1229J166
A1229J166 ✓ 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 SERVICE BRAK 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 5310-00-701-4873, 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
A1229J166
NSN: 5310-00-701-4873
FSC: 5310
CAGE: 63734 — KAITLIN CORP (USA)
SPECIFICATIONS
Part NumberA1229J166
NSN5310-00-701-4873
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A1229J166 · 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 21
50-685-0000-31Interchangeable
interchangeable cross-reference
interchangeable
2091-0000-46Interchangeable
interchangeable cross-reference
interchangeable
8291Interchangeable
interchangeable cross-reference
interchangeable
929457-101Interchangeable
interchangeable cross-reference
interchangeable
929457Interchangeable
interchangeable cross-reference
interchangeable
901305Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1229J166?
A1229J166 is a WASHER SERVICE BRAK.
What parts can replace A1229J166?
There are 21 known substitutes for A1229J166: 50-685-0000-31, 2091-0000-46, 8291 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1229J166?
A1229J166 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-701-4873. 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