The Shaft,shouldered, cataloged under National Stock Number 3040-01-073-0744, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Triumph Gear Systems - Macomb, Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 3040-01-073-0744 |
| Primary Part Number | 3-105-054-25 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Triumph Gear Systems - Macomb, Inc |
| Status | ACTIVE |
| First End Pitch Diameter | 1.7500 INCHES NOMINAL IN |
| Step Quantity | 9 |
| First End Diameter | 1.8190 INCHES NOMINAL IN |
| First End Spline Major Diameter | 1.7768 INCHES NOMINAL IN |
| Largest Step Diameter | 1.660 INCHES NOMINAL IN |
| First End Style | SPLINED (INVOLUTE) |
| First End Pressure Angle | 30.0 DEGREES NOMINAL |
| First End Spline Length | 1.3500 INCHES NOMINAL IN |
| First End Spline Quantity | 70 |
| End Similarity | NOT IDENTICAL |
| First End Spline Minor Diameter | 1.8450 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3-105-054-25 | Donlee Precision Div Donlee Precision (CAN) |
| 3-105-054-25 PRIMARY | Triumph Gear Systems - Macomb, Inc (USA) |
| 12286265 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 3-105-054-11 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-01-073-0744 is a Shaft,shouldered, manufactured by Triumph Gear Systems - Macomb, Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-073-0744 has 3 manufacturer part numbers on file: 3-105-054-25 (Donlee Precision Div Donlee Precision), 3-105-054-25 (Triumph Gear Systems - Macomb, Inc), 12286265 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 3-105-054-25: First End Pitch Diameter: 1.7500 INCHES NOMINAL IN; Step Quantity: 9; First End Diameter: 1.8190 INCHES NOMINAL IN; First End Spline Major Diameter: 1.7768 INCHES NOMINAL IN. 12 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 3040-01-073-0744 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.