The Washer,flat, cataloged under National Stock Number 5310-01-655-1331, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Massie Mfg Inc. 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 | Massie Mfg Inc (CAGE 4PCA2) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-655-1331 |
| Primary Part Number | 12020711 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Massie Mfg Inc |
| 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 |
|---|---|
| 12020711 PRIMARY | Massie Mfg Inc (USA) |
NSN 5310-01-655-1331 is a Washer,flat, manufactured by Massie Mfg Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-655-1331 has 1 manufacturer part number on file: 12020711 (Massie Mfg Inc).
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.