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12653002257 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12653002257: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, hole_diameter: 0.453 INCHES NOMINAL IN, outside_diameter: 1.150 INCHES NOMINAL IN, material_thickness: 0.020 INCHES NOMINAL IN, external_straight_key_width: 0.270 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-068-8411, 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
12653002257
NSN: 5310-01-068-8411
FSC: 5310 — Nuts and Washers
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
hole_diameter0.453 INCHES NOMINAL IN
outside_diameter1.150 INCHES NOMINAL IN
material_thickness0.020 INCHES NOMINAL IN
external_straight_key_width0.270 INCHES NOMINAL IN
NSN5310-01-068-8411
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12653002257 · 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
•
OUTSIDE DIAMETER: 1.150 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.020 INCHES NOMINAL IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.270 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 302 OVERALL
•
HOLE DIAMETER: 0.453 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER1.150 INCHES NOMINAL IN
MATERIAL THICKNESS0.020 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY WIDTH0.270 INCHES NOMINAL IN
MATERIALSTEEL COMP 302 OVERALL
HOLE DIAMETER0.453 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
A12653.002.257Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 12653002257?
12653002257 is a WASHER,KEY.
What parts can replace 12653002257?
There is 1 known substitute for 12653002257: A12653.002.257. Substitute compatibility should be verified for your specific system.
What is the NSN for 12653002257?
12653002257 is cataloged in the U.S. Government catalog under NSN 5310-01-068-8411. 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.