Washer, Recessed5310-00-884-0641

NSN 5310-00-884-0641 · NIIN 008840641

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

Government record, cited

Also searched as 5310-00-884-0641 · 5310008840641 · NIIN 008840641 · 00-884-0641 · FSC 5310 Nuts and Washers

Nearby stock numbers ← 5310-00-884-0530 · 5310-00-884-0725 →

5310-00-884-0641 — Nuts and Washers

Features

Washer,recessed — FSC 5310
Style Designator: RECESSED
Outside Diameter: 2.250 INCHES NOMINAL IN
Recess Depth: 0.312 INCHES NOMINAL IN
Recess Diameter: 1.625 INCHES NOMINAL IN
Material: STEEL OVERALL
Hole Diameter: 1.000 INCHES NOMINAL IN

Identification

NSN: 5310-00-884-0641
NIIN: 008840641
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,recessed, cataloged under National Stock Number 5310-00-884-0641, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-00-884-0641
Item Name	Washer,recessed
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Style Designator	RECESSED
Outside Diameter	2.250 INCHES NOMINAL IN
Recess Depth	0.312 INCHES NOMINAL IN
Recess Diameter	1.625 INCHES NOMINAL IN
Material	STEEL OVERALL
Hole Diameter	1.000 INCHES NOMINAL IN

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

⇄ Related Items 2

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5360-01-078-0813102880 POSSIBLE MATCH

SPRING,HELICAL

Possible match (shared part number)Defense & Development Enterprises Llc

6660-01-605-5902 POSSIBLE MATCH

METEOROLOGICAL STATION GROUP

Possible match (shared part number)

Cross-Reference Index

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

Reference documents

Reference	Meaning
102880	3/2 Design control — primary reference U.S. Government activity

Related Parts

5360-01-078-0813POSSIBLE MATCH

SPRING,HELICAL

102880

6660-01-605-5902POSSIBLE MATCH

METEOROLOGICAL STATION GROUP

Frequently Asked Questions

What is NSN 5310-00-884-0641?

NSN 5310-00-884-0641 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.

What NSN replaces 5310-00-884-0641?

2 possible matches (shared part number, not a government interchangeability claim): 5360-01-078-0813, 6660-01-605-5902. Verify interchangeability with system specifications before substitution.

What are the specifications of 5310-00-884-0641?

Key specifications for 5310-00-884-0641: Overall Height: 0.500 INCHES NOMINAL IN; Style Designator: RECESSED; Outside Diameter: 2.250 INCHES NOMINAL IN; Recess Depth: 0.312 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 5310-00-884-0641 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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