The Washer,support, cataloged under National Stock Number 5310-01-533-4113, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5310-01-533-4113 |
| Primary Part Number | 1KP198 |
| Item Name | Washer,support |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Oshkosh Defense Llc |
| 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 |
|---|---|
| 0259977738-00 | Plasan North America, Inc. (USA) |
| 1KP198 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 1KP198 | 3/9 Design control — primary reference Oshkosh Corp |
| 0259977738-00 | 5/9 Secondary reference Bae Systems Survivability Systems Llc |
NSN 5310-01-533-4113 is a Washer,support, manufactured by Oshkosh Defense Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-533-4113 has 2 manufacturer part numbers on file: 0259977738-00 (Plasan North America, Inc.), 1KP198 (Oshkosh Defense Llc).
Key specifications for 1KP198: Part Name Assigned by Controlling Agency: BELLY DEFLECTOR,OVERLAP 2; End Item Identification: 2320-01-465-2174 MK23, 2320-01-465-2176 MK25. 0 specifications are documented in the U.S. Government catalog.
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.