PartsTable TECHNICAL DATA SHEET

NSN 5310-01-648-2728Government record, cited

Washer, Concave5310-01-648-2728

NSN 5310-01-648-2728 · NIIN 016482728 · Part number JSFW01-32V

R.g.h. Associates, Inc. Dba Richards Screw Machine · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 2Y283

Government record, cited

NSN 5310-01-648-2728 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-648-2728. Manufacturer of record part number: JSFW01-32V.

Also searched as 5310-01-648-2728 · 5310016482728 · NIIN 016482728 · 01-648-2728 · FSC 5310 Nuts and Washers · CAGE 2Y283 · JSFW01-32V · JSFW01

Nearby stock numbers ← 5310-01-648-2725 Washer, Concave · 5310-01-648-2729 Washer, Concave →

5310-01-648-2728 — Nuts and Washers

Features

Washer,concave — FSC 5310
1 manufacturer part number on file
Manufacturer of record: R.g.h. Associates, Inc. Dba Richards Screw Machine

Identification

NSN: 5310-01-648-2728
NIIN: 016482728
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: JSFW01-32V
Manufacturer: R.g.h. Associates, Inc. Dba Richards Screw Machine

General Description

The Washer,concave, cataloged under National Stock Number 5310-01-648-2728, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is R.g.h. Associates, Inc. Dba Richards Screw Machine. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Washer,concave
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	R.g.h. Associates, Inc. Dba Richards Screw Machine (CAGE 2Y283)

Technical Specifications

Parameter	Value
NSN	5310-01-648-2728
Primary Part Number	JSFW01-32V
Item Name	Washer,concave
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	R.g.h. Associates, Inc. Dba Richards Screw Machine
Status	ACTIVE

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 4

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

5310-01-648-2729JSFW01-48V POSSIBLE MATCH

WASHER,CONCAVE

Possible match (shared part number)R.g.h. Associates, Inc. Dba Richards Screw Machine

5310-01-648-2734JSFW01-16V POSSIBLE MATCH

WASHER,CONCAVE

Possible match (shared part number)R.g.h. Associates, Inc. Dba Richards Screw Machine

5310-01-648-3276JSFW01-84V POSSIBLE MATCH

WASHER,CONCAVE

Possible match (shared part number)R.g.h. Associates, Inc. Dba Richards Screw Machine

5310-01-648-3277JSFW01-64V POSSIBLE MATCH

WASHER,CONCAVE

Possible match (shared part number)R.g.h. Associates, Inc. Dba Richards Screw Machine

Cross-Reference Index

Part Number	Manufacturer
JSFW01-32V PRIMARY	R.g.h. Associates, Inc. Dba Richards Screw Machine (USA)

Reference documents

Reference	Meaning
JSFW01	D/9 Drawing number reference only U.S. Government activity
JSFW01-32V	1/2 Source control — Government-approved source U.S. Government activity

Related Parts

5310-01-648-2729POSSIBLE MATCH

WASHER,CONCAVE

JSFW01-48V

5310-01-648-2734POSSIBLE MATCH

WASHER,CONCAVE

JSFW01-16V

5310-01-648-3276POSSIBLE MATCH

WASHER,CONCAVE

JSFW01-84V

5310-01-648-3277POSSIBLE MATCH

WASHER,CONCAVE

JSFW01-64V

Frequently Asked Questions

What is NSN 5310-01-648-2728?

NSN 5310-01-648-2728 is a Washer,concave, manufactured by R.g.h. Associates, Inc. Dba Richards Screw Machine, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-648-2728?

NSN 5310-01-648-2728 has 1 manufacturer part number on file: JSFW01-32V (R.g.h. Associates, Inc. Dba Richards Screw Machine).

What NSN replaces 5310-01-648-2728?

4 possible matches (shared part number, not a government interchangeability claim): 5310-01-648-2729, 5310-01-648-2734, 5310-01-648-3276. Verify interchangeability with system specifications before substitution.

Is NSN 5310-01-648-2728 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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