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12591488 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12591488: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.3800 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN, outside_diameter: 0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN, end_item_identification: USED ON ABF334 AR5. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-342-3695, 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
12591488
NSN: 5310-01-342-3695
FSC: 5310 — Nuts and Washers
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.3800 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
outside_diameter0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
end_item_identificationUSED ON ABF334 AR5
external_straight_key_width0.292 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
material_document_and_classificationASTM A619 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_end_of_key0.605 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
NSN5310-01-342-3695
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12591488 · 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
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A619 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.292 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO END OF KEY: 0.605 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A619 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
MATERIAL THICKNESS0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
EXTERNAL STRAIGHT KEY WIDTH0.292 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO END OF KEY0.605 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONUSED ON ABF334 AR5
MATERIALSTEEL OVERALL
HOLE DIAMETER0.3800 INCHES MINIMUM AND 0.3850 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

No substitute or cross-reference records for this part.

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 12591488?
12591488 is a WASHER,KEY.
What is the NSN for 12591488?
12591488 is cataloged in the U.S. Government catalog under NSN 5310-01-342-3695. 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.