The Washer,saddle, cataloged under National Stock Number 5310-01-203-0651, 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 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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,saddle |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Satellite Aerospace, Incorporated Dba Satellite Aerospace Inc (CAGE 62224); Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring (CAGE 27068); Rotair Aerospace Corp (CAGE 54878); Preci-Manufacturing, Incorporated (CAGE 66841); Enjet Aero Manchester Llc (CAGE 33615) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-203-0651 |
| Primary Part Number | 65311-03001-102 |
| Item Name | Washer,saddle |
| 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) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 65311-03001-102 | Satellite Aerospace, Incorporated Dba Satellite Aerospace Inc (USA) |
| 65311-03001-102 | Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring (USA) |
| 65311-03001-102 | Rotair Aerospace Corp (USA) |
| 65311-03001-102 | Preci-Manufacturing, Incorporated (USA) |
| 65311-03001-102 | Enjet Aero Manchester Llc (USA) |
| 65311-03001-102 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 65311-03001-102 | 5/9 Secondary reference Crystal Machine and Die Corp |
NSN 5310-01-203-0651 is a Washer,saddle, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-203-0651 has 6 manufacturer part numbers on file: 65311-03001-102 (Satellite Aerospace, Incorporated Dba Satellite Aerospace Inc), 65311-03001-102 (Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring), 65311-03001-102 (Rotair Aerospace Corp), 65311-03001-102 (Preci-Manufacturing, Incorporated), 65311-03001-102 (Enjet Aero Manchester Llc) and 1 more.
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.