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Technical Data Sheet
PartsTable / COMPONENT / 69963-3
69963-3 ✓ 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

NUT,SELF-LOCKING,CASTELLATED,HEX. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-143-2340, 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
69963-3
NSN: 5310-01-143-2340
FSC: 5310
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
Part Number69963-3
NSN5310-01-143-2340
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 69963-3 · 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 6
75NTM82Interchangeable
interchangeable cross-reference
interchangeable
1V0064-00Interchangeable
interchangeable cross-reference
interchangeable
21C1599-22Interchangeable
interchangeable cross-reference
interchangeable
MS20365C-832AInterchangeable
interchangeable cross-reference
interchangeable
2HG737Interchangeable
interchangeable cross-reference
interchangeable
002-003645-003Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 69963-3?
69963-3 is a NUT,SELF-LOCKING,CASTELLATED,HEX.
What parts can replace 69963-3?
There are 6 known substitutes for 69963-3: 75NTM82, 1V0064-00, 21C1599-22 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 69963-3?
69963-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-143-2340. 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