The Washer,pantleg,special, cataloged under National Stock Number 5310-01-299-4331, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Westinghouse Electric Corp. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-299-4331 |
| Primary Part Number | 688J394PC172 |
| Item Name | Washer,pantleg,special |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| General Characteristics Item Description | SIZE-0.625,MATERIAL-STEEL,SPECIFICATION-QQ-S-698,HRCQ-P0 |
| 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 |
|---|---|
| 688J394PC172 PRIMARY | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 6547D64H15 | 5/9 Secondary reference Wesco Distribution, Inc. Div Hampton VA |
| QQ-S-698-HRCQ,P0.0.625IN | 5/1 Secondary reference U.S. Government activity |
| 688J394PC172 | 5/9 Secondary reference Wesco Distribution, Inc. Div Hampton VA |
NSN 5310-01-299-4331 is a Washer,pantleg,special, manufactured by Westinghouse Electric Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-299-4331 has 1 manufacturer part number on file: 688J394PC172 (Westinghouse Electric Corp).
Key specifications for 688J394PC172: General Characteristics Item Description: SIZE-0.625,MATERIAL-STEEL,SPECIFICATION-QQ-S-698,HRCQ-P0. 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.