The Washer,flat, cataloged under National Stock Number 5310-01-472-1139, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Leonardo Spa Helicopters Division - Production Site. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-472-1139 |
| Primary Part Number | NAS1149D0732K |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Leonardo Spa Helicopters Division - Production Site |
| Status | ACTIVE |
| 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 |
|---|---|
| NAS1149D0732K | Leonardo Spa Helicopters Division - Production Site (ITA) |
| NAS1149D0732K | Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (ITA) |
| Reference | Meaning |
|---|---|
| 5310PL2130106 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| NAS1149D0732K | 3/2 Design control — primary reference U.S. Government activity |
| NAS1149D0732K | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-472-1139 is a Washer,flat, manufactured by Leonardo Spa Helicopters Division - Production Site, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-472-1139 has 2 manufacturer part numbers on file: NAS1149D0732K (Leonardo Spa Helicopters Division - Production Site), NAS1149D0732K (Leonardo Spa Aeronautics Division - Pomigliano D'arco Site).
Key specifications for NAS1149D0732K: Part Name Assigned by Controlling Agency: WASHER, FLAT. 0 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.