The Washer,lock, cataloged under National Stock Number 5310-01-443-0334, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Flowserve Corp Dba Automax Actuators Div Flowserve Us Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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,lock |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (CAGE 52374) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-443-0334 |
| Primary Part Number | 01-435-0346-4 ITEM 98 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Flowserve Corp Dba Automax Actuators Div Flowserve Us Company |
| 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 |
|---|---|
| 01-435-0346-4 ITEM 98 PRIMARY | Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (USA) |
| Reference | Meaning |
|---|---|
| HT1-10 | 5/9 Secondary reference Flowserve Corp Dba Automax Actuators Div Flowserve Us Company |
NSN 5310-01-443-0334 is a Washer,lock, manufactured by Flowserve Corp Dba Automax Actuators Div Flowserve Us Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-443-0334 has 1 manufacturer part number on file: 01-435-0346-4 ITEM 98 (Flowserve Corp Dba Automax Actuators Div Flowserve Us Company).
1 possible match (shared part number, not a government interchangeability claim): 6850-01-705-6812. 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.