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202021015-01 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

202021015-01: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include thickness: 0.063 INCHES NOMINAL IN, hole_diameter: 0.376 INCHES NOMINAL IN, overall_diameter: 0.645 INCHES NOMINAL IN, end_item_identification: C-5 AIRCRAFT, part_name_assigned_by_controlling_agency: WASHER-DRIVE, BALLSCREW. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-692-8099, 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
202021015-01
NSN: 5310-01-692-8099
FSC: 5310 — Nuts and Washers
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
thickness0.063 INCHES NOMINAL IN
hole_diameter0.376 INCHES NOMINAL IN
overall_diameter0.645 INCHES NOMINAL IN
end_item_identificationC-5 AIRCRAFT
specification/standard_data05047-ASME Y14.100 INCLUDING APPENDICES B THRU 3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 05047-ASME Y14.5-2018 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
part_name_assigned_by_controlling_agencyWASHER-DRIVE, BALLSCREW
NSN5310-01-692-8099
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 202021015-01 · 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
•
OVERALL DIAMETER: 0.645 INCHES NOMINAL IN
•
SPECIFICATION/STANDARD DATA: 05047-ASME Y14.100 INCLUDING APPENDICES B THRU 3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 05047-ASME Y14.5-2018 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
HOLE DIAMETER: 0.376 INCHES NOMINAL IN
•
THICKNESS: 0.063 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.645 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA05047-ASME Y14.100 INCLUDING APPENDICES B THRU 3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 05047-ASME Y14.5-2018 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER-DRIVE, BALLSCREW
END ITEM IDENTIFICATIONC-5 AIRCRAFT
HOLE DIAMETER0.376 INCHES NOMINAL IN
THICKNESS0.063 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
202012015-01Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 202021015-01?
202021015-01 is a WASHER,FLAT.
What parts can replace 202021015-01?
There is 1 known substitute for 202021015-01: 202012015-01. Substitute compatibility should be verified for your specific system.
What is the NSN for 202021015-01?
202021015-01 is cataloged in the U.S. Government catalog under NSN 5310-01-692-8099. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.