The Washer,flat, cataloged under National Stock Number 5310-01-598-2139, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Shyft Group Usa, Inc Dba the Shyft Group Usa, Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | The Shyft Group Usa, Inc Dba the Shyft Group Usa, Inc (CAGE 36MV0) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-598-2139 |
| Primary Part Number | 04FWSAEZ |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Shyft Group Usa, Inc Dba the Shyft Group Usa, Inc |
| 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 |
|---|---|
| 04FWSAEZ PRIMARY | The Shyft Group Usa, Inc Dba the Shyft Group Usa, Inc (USA) |
| Reference | Meaning |
|---|---|
| 0158-BB1 | D/9 Drawing number reference only The Shyft Group Usa, Inc Dba the Shyft Group Usa, Inc |
NSN 5310-01-598-2139 is a Washer,flat, manufactured by The Shyft Group Usa, Inc Dba the Shyft Group Usa, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-598-2139 has 1 manufacturer part number on file: 04FWSAEZ (The Shyft Group Usa, Inc Dba the Shyft Group Usa, Inc).
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.