K19301-3 — WASHER,CONCAVE

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

K19301-3: WASHER,CONCAVE.

The WASHER,CONCAVE is a the manufacturer industrial component. Key specifications include radius: 0.250 INCHES NOMINAL IN, material: STEEL OVERALL, hole_diameter: 0.261 INCHES NOMINAL IN, recess_diameter: 0.330 INCHES NOMINAL IN, outside_diameter: 0.380 INCHES NOMINAL IN, style_designator: CONCAVE. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-701-8579, 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

K19301-3

NSN: 5310-00-701-8579
NIINs: 007018579, 011115542
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)

SPECIFICATIONS

radius	0.250 INCHES NOMINAL IN
material	STEEL OVERALL
hole_diameter	0.261 INCHES NOMINAL IN
recess_diameter	0.330 INCHES NOMINAL IN
outside_diameter	0.380 INCHES NOMINAL IN
style_designator	CONCAVE
surface_treatment	CADMIUM OVERALL
material_thickness	0.085 INCHES NOMINAL IN
surface_treatment_document_and_classification	QQ-P-416,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN	5310-00-701-8579

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

RADIUS: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN

•

STYLE DESIGNATOR: CONCAVE

•

OUTSIDE DIAMETER: 0.380 INCHES MAXIMUM IN

•

MATERIAL THICKNESS: 0.085 INCHES NOMINAL IN

•

RECESS DIAMETER: 0.330 INCHES NOMINAL IN

•

SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL

•

MATERIAL: STEEL OVERALL

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
RADIUS	0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
STYLE DESIGNATOR	CONCAVE
OUTSIDE DIAMETER	0.380 INCHES MAXIMUM IN
MATERIAL THICKNESS	0.085 INCHES NOMINAL IN
RECESS DIAMETER	0.330 INCHES NOMINAL IN
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
MATERIAL	STEEL OVERALL
HOLE DIAMETER	0.261 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 2

HE114-0055-1001Reference document

Same NSN cross-reference

Reference document — Secondary reference

5310PL2228056Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is K19301-3?

K19301-3 is a WASHER,CONCAVE.

What parts can replace K19301-3?

There are 2 known substitutes for K19301-3: HE114-0055-1001, 5310PL2228056. Substitute compatibility should be verified for your specific system.

What is the NSN for K19301-3?

K19301-3 is cataloged in the U.S. Government catalog under NSN 5310-00-701-8579. This indicates validated use in U.S. government and defense supply chains.

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