The Washer,flat, cataloged under National Stock Number 5310-01-661-4229, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Perkins Engines Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-661-4229 |
| Primary Part Number | 025100006 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Perkins Engines Inc |
| Status | ACTIVE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Center Hole Shape Style | ROUND |
| 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 |
|---|---|
| 025100006 | Perkins Engines Inc (USA) |
| Reference | Meaning |
|---|---|
| 4298330 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
| 125100006 | 3/9 Design control — primary reference Power Great Lakes, Inc. |
NSN 5310-01-661-4229 is a Washer,flat, manufactured by Perkins Engines Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-661-4229 has 1 manufacturer part number on file: 025100006 (Perkins Engines Inc).
Key specifications for 025100006: Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: WASHER, FUEL INJECTOR PUMP HB70582J; End Item Identification: 4210-01-622-0440; TRUCK, FIRE FIGHTING. 3 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.