The Washer,concave, cataloged under National Stock Number 5310-01-347-3780, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Washer,concave |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (CAGE 1W025); Moeller Manufacturing & Supply, Llc (CAGE 58009); Anillo Industries Llc (CAGE 10630) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-347-3780 |
| Primary Part Number | 03A257-14A |
| Item Name | Washer,concave |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing 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 |
|---|---|
| 03A257-14A | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| MM118-14A | Moeller Manufacturing & Supply, Llc (USA) |
| AS19879-14A | Anillo Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| NS202860-14A | 3/2 Design control — primary reference U.S. Government activity |
| VN948BF14 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-347-3780 is a Washer,concave, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-347-3780 has 3 manufacturer part numbers on file: 03A257-14A (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), MM118-14A (Moeller Manufacturing & Supply, Llc), AS19879-14A (Anillo Industries Llc).
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.