03A377F8 — WASHER,RECESSED

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

03A377F8: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROSILICONE CLASS FQ SEALING ELEMENT, recess_angle: 90.0 DEGREES NOMINAL, hole_diameter: 0.238 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN, outside_diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, surface_treatment: NICKEL BODY, material_thickness: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-391-9112, 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

03A377F8

NSN: 5310-01-391-9112
FSC: 5310 — Nuts and Washers
CAGE: 76823 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)

SPECIFICATIONS

material	RUBBER FLUOROSILICONE CLASS FQ SEALING ELEMENT
recess_angle	90.0 DEGREES NOMINAL
hole_diameter	0.238 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
outside_diameter	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
surface_treatment	NICKEL BODY
material_thickness	0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
material_document_and_classification	MIL-R-25988 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT
surface_treatment_document_and_classification	MIL-C-26074, CL2, GRB MIL SPEC SINGLE TREATMENT RESPONSE BODY
NSN	5310-01-391-9112

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-26074, CL2, GRB MIL SPEC SINGLE TREATMENT RESPONSE BODY

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-25988 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT

•

OUTSIDE DIAMETER: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN

•

MATERIAL THICKNESS: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN

•

SURFACE TREATMENT: NICKEL BODY

•

MATERIAL: STEEL COMP 4130 BODY

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-26074, CL2, GRB MIL SPEC SINGLE TREATMENT RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-R-25988 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE BODY
OUTSIDE DIAMETER	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
MATERIAL THICKNESS	0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
SURFACE TREATMENT	NICKEL BODY
MATERIAL	STEEL COMP 4130 BODY
MATERIAL	RUBBER FLUOROSILICONE CLASS FQ SEALING ELEMENT
HOLE DIAMETER	0.238 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
RECESS ANGLE	90.0 DEGREES NOMINAL

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 2

888333-8Reference document

Same NSN cross-reference

Reference document — Secondary reference

888333 1/4Same 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 03A377F8?

03A377F8 is a WASHER,RECESSED.

What parts can replace 03A377F8?

There are 2 known substitutes for 03A377F8: 888333-8, 888333 1/4. Substitute compatibility should be verified for your specific system.

What is the NSN for 03A377F8?

03A377F8 is cataloged in the U.S. Government catalog under NSN 5310-01-391-9112. This indicates validated use in U.S. government and defense supply chains.

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