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PartsTable / COMPONENT / 21006763-101
21006763-101 ✓ 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,ASSEMBLY 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 5310-01-053-0852, 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
21006763-101
NSN: 5310-01-053-0852
FSC: 5310
CAGE: 81395 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. DBA BAE SYSTEMS (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL,BLACK PENTRATE FINISH,CONCAVE AND CONVEX WASHER,OVERALL THK 0.250 IN.,0.875 IN. OVERALL DIA,0.406 IN. DIA HOLE IN CONCAVE PORTION,0.438 IN. DIA HOLE IN CONVEX PORTION IN
NSN5310-01-053-0852
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 21006763-101 · 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
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,BLACK PENTRATE FINISH,CONCAVE AND CONVEX WASHER,OVERALL THK 0.250 IN.,0.875 IN. OVERALL DIA,0.406 IN. DIA HOLE IN CONCAVE PORTION,0.438 IN. DIA HOLE IN CONVEX PORTION IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,BLACK PENTRATE FINISH,CONCAVE AND CONVEX WASHER,OVERALL THK 0.250 IN.,0.875 IN. OVERALL DIA,0.406 IN. DIA HOLE IN CONCAVE PORTION,0.438 IN. DIA HOLE IN CONVEX PORTION IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
5167677Interchangeable
interchangeable cross-reference
interchangeable
10W21269Interchangeable
interchangeable cross-reference
interchangeable
N3482Interchangeable
interchangeable cross-reference
interchangeable
RA108NPPFS124WS1108KTInterchangeable
interchangeable cross-reference
interchangeable
32003Interchangeable
interchangeable cross-reference
interchangeable
WB224U-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21006763-101?
21006763-101 is a WASHER,ASSEMBLY.
What parts can replace 21006763-101?
There are 14 known substitutes for 21006763-101: 5167677, 10W21269, N3482 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21006763-101?
21006763-101 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-053-0852. 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