The Washer,flat, cataloged under National Stock Number 5310-01-661-4223, 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 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-661-4223 |
| Primary Part Number | 140996260 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Perkins Engines Inc |
| Status | ACTIVE |
| Overall Diameter | 14.70 MILLIMETERS NOMINAL MM |
| Peripheral Shape Style | ROUND |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 8.50 MILLIMETERS NOMINAL MM |
| Thickness | 1.50 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 140996260 | Perkins Engines Inc (USA) |
| Reference | Meaning |
|---|---|
| 140996260 | 3/9 Design control — primary reference Power Great Lakes, Inc. |
| 4298365 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5310-01-661-4223 is a Washer,flat, manufactured by Perkins Engines Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-661-4223 has 1 manufacturer part number on file: 140996260 (Perkins Engines Inc).
Key specifications for 140996260: Overall Diameter: 14.70 MILLIMETERS NOMINAL MM; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: WASHER, FLAT M8X14.65X1.5 ST; End Item Identification: 4210-01-622-0440; TRUCK, FIRE FIGHTING. 5 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.