The Washer,lock, cataloged under National Stock Number 5310-01-181-0736, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Siemens Energy, Inc.. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Washer,lock |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Siemens Energy, Inc. (CAGE 16712); Circor Pumps North America Llc (CAGE 59180) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-181-0736 |
| Primary Part Number | B-22692 HC-201 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Siemens Energy, 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 |
|---|---|
| HC-201 | Siemens Energy, Inc. (USA) |
| SF10891-054 | Circor Pumps North America Llc (USA) |
| B-22692 HC-201 PRIMARY | Siemens Energy, Inc. (USA) |
| S3223G | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| S3223G | 5/9 Secondary reference Siemens Energy, Inc. |
| SF10809 ITEM 065 | C/1 Advisory reference — outside the item-of-supply concept Circor Pumps North America Llc |
NSN 5310-01-181-0736 is a Washer,lock, manufactured by Siemens Energy, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-181-0736 has 4 manufacturer part numbers on file: HC-201 (Siemens Energy, Inc.), SF10891-054 (Circor Pumps North America Llc), B-22692 HC-201 (Siemens Energy, Inc.), S3223G (Circor Pumps North America Llc).
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.