The Washer,flat, cataloged under National Stock Number 5310-01-563-0175, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Clamshell Structures, 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 | Clamshell Structures, Inc (CAGE 0AMA6) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-563-0175 |
| Primary Part Number | 503362 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Clamshell Structures, Inc |
| 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 |
|---|---|
| 503362 PRIMARY | Clamshell Structures, Inc (USA) |
NSN 5310-01-563-0175 is a Washer,flat, manufactured by Clamshell Structures, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-563-0175 has 1 manufacturer part number on file: 503362 (Clamshell Structures, 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.