The Washer,flat, cataloged under National Stock Number 5310-01-598-6322, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Plasan North America, Inc.. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Plasan North America, Inc. (CAGE 535V1); Oshkosh Defense Llc (CAGE 75Q65) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-598-6322 |
| Primary Part Number | 5320000007-00 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Plasan North America, 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 |
|---|---|
| 5320000007-00 PRIMARY | Plasan North America, Inc. (USA) |
| 18KP923 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 18KP923 | 5/9 Secondary reference Oshkosh Corp |
| 5320000007-00 | 5/9 Secondary reference Bae Systems Survivability Systems Llc |
NSN 5310-01-598-6322 is a Washer,flat, manufactured by Plasan North America, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-598-6322 has 2 manufacturer part numbers on file: 5320000007-00 (Plasan North America, Inc.), 18KP923 (Oshkosh Defense Llc).
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.