The Washer,flat, cataloged under National Stock Number 5310-01-276-2839, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems (CAGE 12522) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-276-2839 |
| Primary Part Number | 109039 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems |
| 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 |
|---|---|
| 109039 PRIMARY | Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems (USA) |
NSN 5310-01-276-2839 is a Washer,flat, manufactured by Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-276-2839 has 1 manufacturer part number on file: 109039 (Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems).
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.