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10121405 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10121405: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, hole_diameter: 0.630 INCHES MINIMUM AND 0.646 INCHES MAXIMUM IN, hardness_rating: 44.0 ROCKWELL C MAXIMUM, outside_diameter: 1.000 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN, special_features: CONSISTS 0F THE 1 HALF, material_thickness: 0.062 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-477-2587, 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
10121405
NSN: 5310-00-477-2587
FSC: 5310 — Nuts and Washers
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
hole_diameter0.630 INCHES MINIMUM AND 0.646 INCHES MAXIMUM IN
hardness_rating44.0 ROCKWELL C MAXIMUM
outside_diameter1.000 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
special_featuresCONSISTS 0F THE 1 HALF
material_thickness0.062 INCHES NOMINAL IN
material_document_and_classificationAMS 5355 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-477-2587
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10121405 · 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
•
HARDNESS RATING: 44.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5355 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.000 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 630 OVERALL
•
HOLE DIAMETER: 0.630 INCHES MINIMUM AND 0.646 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HARDNESS RATING44.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5355 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.000 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
SPECIAL FEATURESCONSISTS 0F THE 1 HALF
MATERIALSTEEL COMP 630 OVERALL
HOLE DIAMETER0.630 INCHES MINIMUM AND 0.646 INCHES MAXIMUM 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 3
5310PL1938714Reference document
Same NSN cross-reference
Reference document — Informative reference only
NAS1193K10-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
NAS1193Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10121405?
10121405 is a WASHER,KEY.
What parts can replace 10121405?
There are 3 known substitutes for 10121405: 5310PL1938714, NAS1193K10-1, NAS1193. Substitute compatibility should be verified for your specific system.
What is the NSN for 10121405?
10121405 is cataloged in the U.S. Government catalog under NSN 5310-00-477-2587. 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.