The Washer,flat, cataloged under National Stock Number 5310-01-357-8841, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Carver Pump Company. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | All-Safe Inc (CAGE 2X264); Carver Pump Company (CAGE 10941) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-357-8841 |
| Primary Part Number | 028-07N-0-05-320 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 028-07N-0-05-320 | All-Safe Inc (USA) |
| 028-07N-0-05-320 PRIMARY | Carver Pump Company (USA) |
| Reference | Meaning |
|---|---|
| N-999-6011-B-002 ITEM NO. 7 | C/1 Advisory reference — outside the item-of-supply concept Carver Pump Company |
NSN 5310-01-357-8841 is a Washer,flat, manufactured by Carver Pump Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-357-8841 has 2 manufacturer part numbers on file: 028-07N-0-05-320 (All-Safe Inc), 028-07N-0-05-320 (Carver Pump Company).
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.