Washer, Recessed5310-01-629-3857

NSN 5310-01-629-3857 · NIIN 016293857

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

Government record, cited

Also searched as 5310-01-629-3857 · 5310016293857 · NIIN 016293857 · 01-629-3857 · FSC 5310 Nuts and Washers

Nearby stock numbers ← 5310-01-629-3823 Washer, Flat · 5310-01-629-3931 Nut, Self-Locking, Hexagon →

5310-01-629-3857 — Nuts and Washers

Features

Washer,recessed — FSC 5310
Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Style Designator: RECESSED
Outside Diameter: 28.38 MILLIMETERS MINIMUM AND 28.90 MILLIMETERS MAXIMUM MM
Material Thickness: 2.50 MILLIMETERS NOMINAL MM
Recess Diameter: 19.20 MILLIMETERS MINIMUM AND 19.60 MILLIMETERS MAXIMUM MM
Surface Treatment: ANODIZE OVERALL
Material: ALUMINUM ALLOY 2024 OVERALL

Identification

NSN: 5310-01-629-3857
NIIN: 016293857
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,recessed, cataloged under National Stock Number 5310-01-629-3857, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-629-3857
Item Name	Washer,recessed
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Surface Treatment Document and Classification	MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Style Designator	RECESSED
Outside Diameter	28.38 MILLIMETERS MINIMUM AND 28.90 MILLIMETERS MAXIMUM MM
Material Thickness	2.50 MILLIMETERS NOMINAL MM
Recess Diameter	19.20 MILLIMETERS MINIMUM AND 19.60 MILLIMETERS MAXIMUM MM
Surface Treatment	ANODIZE OVERALL
Material	ALUMINUM ALLOY 2024 OVERALL
Hole Diameter	16.60 MILLIMETERS MINIMUM AND 17.03 MILLIMETERS MAXIMUM MM
Recess Angle	44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM

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
NA0179D160CK	3/2 Design control — primary reference U.S. Government activity

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 5310-01-629-3857?

NSN 5310-01-629-3857 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-01-629-3857?

Key specifications for 5310-01-629-3857: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: RECESSED; Outside Diameter: 28.38 MILLIMETERS MINIMUM AND 28.90 MILLIMETERS MAXIMUM MM; Material Thickness: 2.50 MILLIMETERS NOMINAL MM. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-629-3857 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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