The Washer,flat, cataloged under National Stock Number 5310-01-714-4629, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hii Unmanned Systems, Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-714-4629 |
| Primary Part Number | 02-290 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hii Unmanned Systems, Inc |
| Status | ACTIVE |
| Outside Diameter | 0.50 INCHES NOMINAL IN |
| 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 |
|---|---|
| 02-290 PRIMARY | Hii Unmanned Systems, Inc (USA) |
NSN 5310-01-714-4629 is a Washer,flat, manufactured by Hii Unmanned Systems, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-714-4629 has 1 manufacturer part number on file: 02-290 (Hii Unmanned Systems, Inc).
Key specifications for 02-290: Outside Diameter: 0.50 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: WASHER; End Item Identification: FLAT; 0.25 ; NARROW, 18 DASH 8 SS. 1 specification is 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.