The Shaft,shouldered, cataloged under National Stock Number 3040-01-414-7997, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-414-7997 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End Grooved Flat Length | 0.8750 INCHES NOMINAL IN |
| Step Quantity | 2 |
| First End Diameter | 1.3720 INCHES MINIMUM AND 1.3730 INCHES MAXIMUM IN |
| Second End Distance From End to Flat | 0.5990 INCHES NOMINAL IN |
| Second End Diameter | 0.4960 INCHES MINIMUM AND 0.4980 INCHES MAXIMUM IN |
| Largest Step Diameter | 1.3720 INCHES MINIMUM AND 1.3730 INCHES MAXIMUM IN |
| Second End Distance From Keyway Center to End | 0.8440 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Keyway Width | 0.1240 INCHES MINIMUM AND 0.1255 INCHES MAXIMUM IN |
| End Similarity | NOT IDENTICAL |
| Second End Grooved Flat Depth | 0.0620 INCHES NOMINAL IN |
| Second End Style | FLAT GROOVE AND WOODRUFF KEYWAY |
| Material | STEEL |
| External Keyway Length | 0.5000 INCHES MINIMUM AND 0.5180 INCHES MAXIMUM SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| C200-292 | 3/9 Design control — primary reference Belshaw Bros., Inc. Dba Belshaw Bros Inc |
NSN 3040-01-414-7997 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-414-7997: Second End Grooved Flat Length: 0.8750 INCHES NOMINAL IN; Step Quantity: 2; First End Diameter: 1.3720 INCHES MINIMUM AND 1.3730 INCHES MAXIMUM IN; Second End Distance From End to Flat: 0.5990 INCHES NOMINAL IN. 14 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.
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.