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A12653.001.257 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A12653.001.257: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: WASHER,KEY. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-067-6979, 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
A12653.001.257
NSN: 5310-01-067-6979
NIINs: 010676979, 011358125, 014497965, 016698721
FSC: 5310 — Nuts and Washers
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyWASHER,KEY
NSN5310-01-067-6979
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A12653.001.257 · 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
•
EXTERNAL STRAIGHT KEY LENGTH: 0.173 INCHES NOMINAL IN
•
OVERALL DISTANCE INCLUDING KEYS: 1.395 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN
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MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A167 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.470 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN
•
PEENING KEY LENGTH: 0.463 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 5
TECHNICAL CHARACTERISTICS
EXTERNAL STRAIGHT KEY LENGTH0.173 INCHES NOMINAL IN
OVERALL DISTANCE INCLUDING KEYS1.395 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A167 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.470 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN
PEENING KEY LENGTH0.463 INCHES NOMINAL IN
MATERIAL THICKNESS0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
EXTERNAL STRAIGHT KEY WIDTH0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY5
MATERIALSTEEL COMP 302 OVERALL
HOLE DIAMETER0.323 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A12653.001.257?
A12653.001.257 is a WASHER,KEY.
What is the NSN for A12653.001.257?
A12653.001.257 is cataloged in the U.S. Government catalog under NSN 5310-01-067-6979. 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.