The Washer,lock, cataloged under National Stock Number 5310-01-668-1663, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Dba Advanced Products and Systems Division Div Advanced Products and Systems. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Curtiss-Wright Electro-Mechanical Corporation Dba Advanced Products and Systems Division Div Advanced Products and Systems (CAGE 4B9X1) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-668-1663 |
| Primary Part Number | 01D2957H09 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Dba Advanced Products and Systems Division Div Advanced Products and Systems |
| Status | ACTIVE |
| 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 |
|---|---|
| 01D2957H09 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Advanced Products and Systems Division Div Advanced Products and Systems (USA) |
| Reference | Meaning |
|---|---|
| NL22SS | 5/9 Secondary reference Nord Lock Inc |
| 3890AS003065-01-H09 | 5/1 Secondary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5310-01-668-1663 is a Washer,lock, manufactured by Curtiss-Wright Electro-Mechanical Corporation Dba Advanced Products and Systems Division Div Advanced Products and Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-668-1663 has 1 manufacturer part number on file: 01D2957H09 (Curtiss-Wright Electro-Mechanical Corporation Dba Advanced Products and Systems Division Div Advanced Products and Systems).
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.