590-351 — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

590-351: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OVERALL, thickness: 0.215 INCHES NOMINAL IN, hole_diameter: 1.5025 INCHES MINIMUM AND 1.5035 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES TOP, outside_diameter: 2.938 INCHES NOMINAL IN, overall_diameter: 2.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-140-1580, 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

590-351

NSN: 5310-01-140-1580
NIINs: 011401580, 011515601
FSC: 5310 — Nuts and Washers
CAGE: 9E328 — STEWARD MACHINE CO INC (USA)

SPECIFICATIONS

material	STEEL COMP 1020 OVERALL
thickness	0.215 INCHES NOMINAL IN
hole_diameter	1.5025 INCHES MINIMUM AND 1.5035 INCHES MAXIMUM IN
surface_finish	32.0 MICROINCHES TOP
outside_diameter	2.938 INCHES NOMINAL IN
overall_diameter	2.750 INCHES NOMINAL IN
material_thickness	0.770 INCHES MINIMUM AND 0.775 INCHES MAXIMUM IN
internal_keyway_width	0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
internal_keyway_quantity	1
cross-sectional_shape_style	RECTANGULAR
NSN	5310-01-140-1580

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES BOTTOM

•

OVERALL DIAMETER: 2.750 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: STEEL COMP 1020 OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES BOTTOM
SURFACE FINISH	32.0 MICROINCHES TOP
OVERALL DIAMETER	2.750 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
PERIPHERAL SHAPE STYLE	ROUND
MATERIAL	STEEL COMP 1020 OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	1.5025 INCHES MINIMUM AND 1.5035 INCHES MAXIMUM IN
THICKNESS	0.215 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 2

590-352Reference document

Same NSN cross-reference

Reference document — Secondary reference

60-701 PIECE 352Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

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 590-351?

590-351 is a WASHER,FLAT.

What parts can replace 590-351?

There are 2 known substitutes for 590-351: 590-352, 60-701 PIECE 352. Substitute compatibility should be verified for your specific system.

What is the NSN for 590-351?

590-351 is cataloged in the U.S. Government catalog under NSN 5310-01-140-1580. This indicates validated use in U.S. government and defense supply chains.

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