Washer, Recessed5310-00-477-2388

NSN 5310-00-477-2388 · NIIN 004772388

FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5310-00-477-2388 · 5310004772388 · NIIN 004772388 · 00-477-2388 · FSC 5310 Nuts and Washers · 12B7329-9 · 12B7329-9

Nearby stock numbers ← 5310-00-477-2379 Nut, Plain, Rectangular · 5310-00-477-2396 →

5310-00-477-2388 — Nuts and Washers

Features

Washer,recessed — FSC 5310
Style Designator: RECESSED
Material Document and Classification: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter: 1.250 INCHES NOMINAL IN
Material Thickness: 0.0370 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
Material: STEEL COMP 4130 OVERALL
Hole Diameter: 0.690 INCHES NOMINAL IN
Recess Angle: 72.0 DEGREES NOMINAL

Identification

NSN: 5310-00-477-2388
NIIN: 004772388
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,recessed, cataloged under National Stock Number 5310-00-477-2388, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-00-477-2388
Item Name	Washer,recessed
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Style Designator	RECESSED
Material Document and Classification	MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter	1.250 INCHES NOMINAL IN
Material Thickness	0.0370 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
Material	STEEL COMP 4130 OVERALL
Hole Diameter	0.690 INCHES NOMINAL IN
Recess Angle	72.0 DEGREES NOMINAL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
12B7329-9	3/2 Design control — primary reference U.S. Government activity
12B7329-9	5/9 Secondary reference Alco Machine Co Inc

No interchangeability data on file.

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

5310-00-000-0040 · Item name not on file

5310-00-000-0077

NUT,PLAIN,ROUND

5310-00-000-0079

WASHER,FLAT

5310-00-000-0079

WASHER,FLAT

5310-00-000-1146

5310-00-000-1146 · Item name not on file

5310-00-000-3815

5310-00-000-3815 · Item name not on file

5310-00-000-4532

5310-00-000-4532 · Item name not on file

5310-00-000-4540

5310-00-000-4540 · Item name not on file

Frequently Asked Questions

What is NSN 5310-00-477-2388?

NSN 5310-00-477-2388 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-00-477-2388?

Key specifications for 5310-00-477-2388: Style Designator: RECESSED; Material Document and Classification: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.250 INCHES NOMINAL IN; Material Thickness: 0.0370 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN. 7 specifications are documented in the U.S. Government catalog.

Is NSN 5310-00-477-2388 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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