The Washer,flat, cataloged under National Stock Number 5310-01-633-8938, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Sae International Dba Sae International (CAGE 0U583); Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-633-8938 |
| Primary Part Number | J2655FAN1500C2 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sae International Dba Sae International |
| 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 |
|---|---|
| J2655FAN1500C2 PRIMARY | Sae International Dba Sae International (USA) |
| 167-8278259 PC 20 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| J2655FAN1500C2 | 3/9 Design control — primary reference U.S. Government activity |
| 167-8278266 ITEM NO. 8 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 167-8278265 ITEM NO. 21 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5310-01-633-8938 is a Washer,flat, manufactured by Sae International Dba Sae International, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-633-8938 has 2 manufacturer part numbers on file: J2655FAN1500C2 (Sae International Dba Sae International), 167-8278259 PC 20 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-640-7236. 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.