The Washer,lock, cataloged under National Stock Number 5310-01-628-2920, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. 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,lock |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (CAGE 07524) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-628-2920 |
| Primary Part Number | 710857 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| 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 |
|---|---|
| 710857 PRIMARY | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA) |
NSN 5310-01-628-2920 is a Washer,lock, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-628-2920 has 1 manufacturer part number on file: 710857 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).
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.