The Washer,flat, cataloged under National Stock Number 5310-01-668-5260, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Pdi Ground Support Systems, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Pdi Ground Support Systems, Inc. (CAGE 0W357) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-668-5260 |
| Primary Part Number | 4701-67 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Pdi Ground Support Systems, 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 |
|---|---|
| 4701-67 PRIMARY | Pdi Ground Support Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 28-2196 | D/9 Drawing number reference only Pdi Ground Support Systems, Inc. |
NSN 5310-01-668-5260 is a Washer,flat, manufactured by Pdi Ground Support Systems, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-668-5260 has 1 manufacturer part number on file: 4701-67 (Pdi Ground Support Systems, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5306-01-669-2799, 5315-01-669-3249. Verify interchangeability with system specifications before substitution.
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.