The Shaft,shouldered, cataloged under National Stock Number 3040-01-055-6665, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 3040-01-055-6665 |
| Primary Part Number | 167C1591 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| Status | ACTIVE |
| Second End External Thread Length | 0.3100 INCHES NOMINAL IN |
| Step Quantity | 3 |
| First End Diameter | 0.3750 INCHES NOMINAL IN |
| Second End Diameter | 0.3125 INCHES NOMINAL IN |
| Largest Step Diameter | 0.640 INCHES NOMINAL IN |
| First End Slot Width | 0.0600 INCHES NOMINAL IN |
| First End Style | SLOTTED |
| End Similarity | NOT IDENTICAL |
| First End Slot Depth | 0.0700 INCHES NOMINAL IN |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 167C1591 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
| Reference | Meaning |
|---|---|
| 3040PL0664841 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 3040-01-055-6665 is a Shaft,shouldered, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-055-6665 has 1 manufacturer part number on file: 167C1591 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 167C1591: Second End External Thread Length: 0.3100 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 0.3750 INCHES NOMINAL IN; Second End Diameter: 0.3125 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
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 3040-01-055-6665 has DEMIL Code B. 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.