The Washer, cataloged under National Stock Number 5310-01-203-0649, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Washer |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Keystone Tool and Machine Co (CAGE 7Y516); J Smith Machine Shop Inc Dba Island Engineering (CAGE 40137); Adk Machine Inc (CAGE 0TFG3); Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (CAGE 78286); Preci-Manufacturing, Incorporated (CAGE 66841) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-203-0649 |
| Primary Part Number | 70361-25029-101 |
| Item Name | Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| 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 |
|---|---|
| 70361-25029-102 | Keystone Tool and Machine Co (USA) |
| 70361-25029-102 | J Smith Machine Shop Inc Dba Island Engineering (USA) |
| 70361-25029-102 | Adk Machine Inc (USA) |
| 70361-25029-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 70361-25029-102 | Preci-Manufacturing, Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 70361-25029-102 | 7/2 Vendor item drawing reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 5310-01-203-0649 is a Washer, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-203-0649 has 5 manufacturer part numbers on file: 70361-25029-102 (Keystone Tool and Machine Co), 70361-25029-102 (J Smith Machine Shop Inc Dba Island Engineering), 70361-25029-102 (Adk Machine Inc), 70361-25029-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 70361-25029-102 (Preci-Manufacturing, Incorporated).
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.