ST4M146-8D — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

ST4M146-8D: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, thickness: 0.020 INCHES NOMINAL IN, hole_diameter: 0.285 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN, overall_diameter: 0.412 INCHES MINIMUM AND 0.427 INCHES MAXIMUM IN, surface_treatment: ANODIZE OR CHROMATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-327-5723, 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

ST4M146-8D

NSN: 5310-01-327-5723
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 2024 OVERALL
thickness	0.020 INCHES NOMINAL IN
hole_diameter	0.285 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
overall_diameter	0.412 INCHES MINIMUM AND 0.427 INCHES MAXIMUM IN
surface_treatment	ANODIZE OR CHROMATE OVERALL
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
material_document_and_classification	QQ-A-250/4,T3,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classification	MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
NSN	5310-01-327-5723

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL

•

OVERALL DIAMETER: 0.412 INCHES MINIMUM AND 0.427 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/4,T3,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

SURFACE TREATMENT: ANODIZE OR CHROMATE OVERALL

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: ALUMINUM ALLOY 2024 OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
OVERALL DIAMETER	0.412 INCHES MINIMUM AND 0.427 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-250/4,T3,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
SURFACE TREATMENT	ANODIZE OR CHROMATE OVERALL
PERIPHERAL SHAPE STYLE	ROUND
MATERIAL	ALUMINUM ALLOY 2024 OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.285 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
THICKNESS	0.020 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

10317581Reference document

Same NSN cross-reference

Reference document — Informative reference only

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 ST4M146-8D?

ST4M146-8D is a WASHER,FLAT.

What parts can replace ST4M146-8D?

There is 1 known substitute for ST4M146-8D: 10317581. Substitute compatibility should be verified for your specific system.

What is the NSN for ST4M146-8D?

ST4M146-8D is cataloged in the U.S. Government catalog under NSN 5310-01-327-5723. This indicates validated use in U.S. government and defense supply chains.

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