The Washer,flat, cataloged under National Stock Number 5310-01-616-3955, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rix Industries. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Rix Industries (CAGE 28953) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-616-3955 |
| Primary Part Number | 20-4460 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rix Industries |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 20-4460 PRIMARY | Rix Industries (USA) |
NSN 5310-01-616-3955 is a Washer,flat, manufactured by Rix Industries, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-616-3955 has 1 manufacturer part number on file: 20-4460 (Rix Industries).
1 possible match (shared part number, not a government interchangeability claim): 5360-01-708-6214. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.