12387327-27 — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

12387327-27: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL, thickness: 0.097 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN, hole_diameter: 0.333 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN, heat_treatment: QUENCHED AND TEMPERED, overall_diameter: 0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN, surface_treatment: ZINC AND CHROMATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-384-4683, 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

12387327-27

NSN: 5310-01-384-4683
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL
thickness	0.097 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
hole_diameter	0.333 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN
heat_treatment	QUENCHED AND TEMPERED
overall_diameter	0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
surface_treatment	ZINC AND CHROMATE OVERALL
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
end_item_identification	MRAP RG-33
cross-sectional_shape_style	RECTANGULAR
surface_treatment_document_and_classification	ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN	5310-01-384-4683

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

OVERALL DIAMETER: 0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN

•

HEAT TREATMENT: QUENCHED AND TEMPERED

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

SURFACE TREATMENT: ZINC AND CHROMATE OVERALL

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER	0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
HEAT TREATMENT	QUENCHED AND TEMPERED
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
SURFACE TREATMENT	ZINC AND CHROMATE OVERALL
PERIPHERAL SHAPE STYLE	ROUND
END ITEM IDENTIFICATION	MRAP RG-33
MATERIAL	STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.333 INCHES MINIMUM AND 0.343 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 1

12387327Reference 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 12387327-27?

12387327-27 is a WASHER,FLAT.

What parts can replace 12387327-27?

There is 1 known substitute for 12387327-27: 12387327. Substitute compatibility should be verified for your specific system.

What is the NSN for 12387327-27?

12387327-27 is cataloged in the U.S. Government catalog under NSN 5310-01-384-4683. This indicates validated use in U.S. government and defense supply chains.

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