The Washer,seal, cataloged under National Stock Number 5310-01-285-1688, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Electrical Standards Repair Service Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Washer,seal |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Electrical Standards Repair Service Inc (CAGE 52799) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-285-1688 |
| Primary Part Number | 53531SS |
| Item Name | Washer,seal |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Electrical Standards Repair Service Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 53531SS PRIMARY | Electrical Standards Repair Service Inc |
| Reference | Meaning |
|---|---|
| 53531SS | 5/9 Secondary reference United Equipment Accessories, Inc. Dba United Equipment Accessories Inc |
| RC1369 | 3/9 Design control — primary reference United Equipment Accessories, Inc. Dba United Equipment Accessories Inc |
| 208356 | 5/9 Secondary reference Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co |
NSN 5310-01-285-1688 is a Washer,seal, manufactured by Electrical Standards Repair Service Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-285-1688 has 1 manufacturer part number on file: 53531SS (Electrical Standards Repair Service 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.