12266421-3 — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

12266421-3: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 OVERALL, thickness: 0.250 INCHES NOMINAL IN, hole_diameter: 0.312 INCHES NOMINAL IN, overall_diameter: 1.120 INCHES NOMINAL IN, surface_treatment: CHROMATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-057-9362, 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

12266421-3

NSN: 5310-01-057-9362
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 OVERALL
thickness	0.250 INCHES NOMINAL IN
hole_diameter	0.312 INCHES NOMINAL IN
overall_diameter	1.120 INCHES NOMINAL IN
surface_treatment	CHROMATE OVERALL
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
material_document_and_classification	QQ-A-250/4,3 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/4,JBCQQ-A-250/11,T6 FED SPEC 1ST MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classification	MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
NSN	5310-01-057-9362

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A

•

OVERALL DIAMETER: 1.120 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/4,3 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/4,JBCQQ-A-250/11,T6 FED SPEC 1ST MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

SURFACE TREATMENT: CHROMATE OVERALL

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
OVERALL DIAMETER	1.120 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-250/4,3 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/4,JBCQQ-A-250/11,T6 FED SPEC 1ST MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
SURFACE TREATMENT	CHROMATE OVERALL
PERIPHERAL SHAPE STYLE	ROUND
MATERIAL	ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.312 INCHES NOMINAL IN
THICKNESS	0.250 INCHES NOMINAL 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

666009-3Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 12266421-3?

12266421-3 is a WASHER,FLAT.

What parts can replace 12266421-3?

There is 1 known substitute for 12266421-3: 666009-3. Substitute compatibility should be verified for your specific system.

What is the NSN for 12266421-3?

12266421-3 is cataloged in the U.S. Government catalog under NSN 5310-01-057-9362. This indicates validated use in U.S. government and defense supply chains.

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