The Spindle, cataloged under National Stock Number 1440-00-673-7903, is classified within Federal Supply Class 1440 (Launchers, Guided Missile) of the Guided Missiles group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Spindle |
| FSC / FSG | 1440 — Launchers, Guided Missile (FSG 14) |
| Manufacturers | Ridge Machine Shop Inc (CAGE 34635); Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001); Fms Corp (CAGE 66131) |
| Parameter | Value |
|---|---|
| NSN | 1440-00-673-7903 |
| Primary Part Number | 1656056 |
| Item Name | Spindle |
| FSC / FSG | 1440 / 14 — Launchers, Guided Missile |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1656056 | Ridge Machine Shop Inc (USA) |
| 1656056 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 1656056 | Fms Corp (USA) |
| Reference | Meaning |
|---|---|
| BUWEPSDWG1656056 | 5/2 Secondary reference U.S. Government activity |
| BUWEPSDWG1656056 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| BUWEPSDWG1656056 | 5/9 Secondary reference U.S. Government activity |
NSN 1440-00-673-7903 is a Spindle, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1440, Launchers, Guided Missile. Status: active.
NSN 1440-00-673-7903 has 3 manufacturer part numbers on file: 1656056 (Ridge Machine Shop Inc), 1656056 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 1656056 (Fms Corp).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-301-5438. 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.
NSN 1440-00-673-7903 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.