4031979 — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

4031979: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C OVERALL, thickness: 0.036 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN, hole_diameter: 0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES BOTTOM, overall_diameter: 1.048 INCHES MINIMUM AND 1.058 INCHES MAXIMUM IN, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-367-8778, 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

4031979

NSN: 5310-00-367-8778
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)

SPECIFICATIONS

material	STEEL COMP 440C OVERALL
thickness	0.036 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
hole_diameter	0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
surface_finish	32.0 MICROINCHES BOTTOM
overall_diameter	1.048 INCHES MINIMUM AND 1.058 INCHES MAXIMUM IN
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
material_document_and_classification	AMS 5630 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN	5310-00-367-8778

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES BOTTOM

•

OVERALL DIAMETER: 1.048 INCHES MINIMUM AND 1.058 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5630 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: STEEL COMP 440C OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES BOTTOM
SURFACE FINISH	32.0 MICROINCHES TOP
OVERALL DIAMETER	1.048 INCHES MINIMUM AND 1.058 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5630 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
PERIPHERAL SHAPE STYLE	ROUND
MATERIAL	STEEL COMP 440C OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
THICKNESS	0.036 INCHES MINIMUM AND 0.038 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

No substitute or cross-reference records for this part.

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 4031979?

4031979 is a WASHER,FLAT.

What is the NSN for 4031979?

4031979 is cataloged in the U.S. Government catalog under NSN 5310-00-367-8778. This indicates validated use in U.S. government and defense supply chains.

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4031979 — WASHER,FLAT

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