The Washer,flat, cataloged under National Stock Number 5310-01-566-0686, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Cummins Filtration 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-566-0686 |
| Primary Part Number | Q66297-20 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Cummins Filtration 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 |
|---|---|
| Q66297-20 PRIMARY | Cummins Filtration Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5839 Q66297 | 3/9 Design control — primary reference Cummins Filtration Inc. |
NSN 5310-01-566-0686 is a Washer,flat, manufactured by Cummins Filtration Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-566-0686 has 1 manufacturer part number on file: Q66297-20 (Cummins Filtration Inc.).
Key specifications for Q66297-20: Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; End Item Identification: 2320-01-529-2251 TRUCK, BOMB SERVICE; Center Hole Shape Style: ROUND. 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.