ST3M683-8 — WASHER,CONCAVE

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

ST3M683-8: WASHER,CONCAVE.

The WASHER,CONCAVE is a the manufacturer industrial component. Key specifications include radius: 0.510 INCHES NOMINAL IN, material: STEEL COMP 630 OR STEEL COMP 631 OR STEEL COMP 632 OVERALL, hole_diameter: 0.646 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN, outside_diameter: 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN, style_designator: CONCAVE, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-172-5595, 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

ST3M683-8

NSN: 5310-01-172-5595
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

radius	0.510 INCHES NOMINAL IN
material	STEEL COMP 630 OR STEEL COMP 631 OR STEEL COMP 632 OVERALL
hole_diameter	0.646 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN
outside_diameter	0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
style_designator	CONCAVE
surface_treatment	PASSIVATE OVERALL
material_thickness	0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
surface_treatment_document_and_classification	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN	5310-01-172-5595

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

RADIUS: 0.510 INCHES NOMINAL IN

•

STYLE DESIGNATOR: CONCAVE

•

OUTSIDE DIAMETER: 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN

•

MATERIAL THICKNESS: 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN

•

SURFACE TREATMENT: PASSIVATE OVERALL

•

MATERIAL: STEEL COMP 630 OR STEEL COMP 631 OR STEEL COMP 632 OVERALL

•

HOLE DIAMETER: 0.646 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
RADIUS	0.510 INCHES NOMINAL IN
STYLE DESIGNATOR	CONCAVE
OUTSIDE DIAMETER	0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
MATERIAL THICKNESS	0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
SURFACE TREATMENT	PASSIVATE OVERALL
MATERIAL	STEEL COMP 630 OR STEEL COMP 631 OR STEEL COMP 632 OVERALL
HOLE DIAMETER	0.646 INCHES MINIMUM AND 0.650 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

SW2000-16WSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 ST3M683-8?

ST3M683-8 is a WASHER,CONCAVE.

What parts can replace ST3M683-8?

There is 1 known substitute for ST3M683-8: SW2000-16W. Substitute compatibility should be verified for your specific system.

What is the NSN for ST3M683-8?

ST3M683-8 is cataloged in the U.S. Government catalog under NSN 5310-01-172-5595. This indicates validated use in U.S. government and defense supply chains.

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