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12543055-005 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12543055-005: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thickness: 0.065 INCHES NOMINAL IN, hole_diameter: 0.276 INCHES NOMINAL IN, overall_diameter: 0.640 INCHES NOMINAL IN, peripheral_shape_style: ROUND, end_item_identification: TRUCK,WRECKER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-644-4457, 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
12543055-005
NSN: 5310-01-644-4457
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thickness0.065 INCHES NOMINAL IN
hole_diameter0.276 INCHES NOMINAL IN
overall_diameter0.640 INCHES NOMINAL IN
peripheral_shape_styleROUND
end_item_identificationTRUCK,WRECKER
material_document_and_classificationASTM F844/F844M ASSN STD SINGLE MATERIAL RESPONSE OR ASTM F436/F436M ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-644-4457
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12543055-005 · 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: 0.640 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM F844/F844M ASSN STD SINGLE MATERIAL RESPONSE OR ASTM F436/F436M ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
HOLE DIAMETER: 0.276 INCHES NOMINAL IN
•
THICKNESS: 0.065 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.640 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM F844/F844M ASSN STD SINGLE MATERIAL RESPONSE OR ASTM F436/F436M ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATIONTRUCK,WRECKER
MATERIALSTEEL CORROSION RESISTING OVERALL
HOLE DIAMETER0.276 INCHES NOMINAL IN
THICKNESS0.065 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
12543055Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 12543055-005?
12543055-005 is a WASHER,FLAT.
What parts can replace 12543055-005?
There is 1 known substitute for 12543055-005: 12543055. Substitute compatibility should be verified for your specific system.
What is the NSN for 12543055-005?
12543055-005 is cataloged in the U.S. Government catalog under NSN 5310-01-644-4457. 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.