The Shaft,shouldered, cataloged under National Stock Number 3040-01-429-6877, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-429-6877 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| First End Diameter | 1.3750 INCHES NOMINAL IN |
| Second End Diameter | 1.5630 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED FLAT KEYWAY AND EXTERNALLY THREADED |
| Second End Keyway Width | 0.3745 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-880, ALY MIL SPEC SINGLE MATERIAL RESPONSE |
| First End Keyway Depth | 0.180 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.216 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | CIRCULAR GROOVED FLAT KEYWAY AND EXTERNALLY THREADED |
| Material | STEEL |
| First End Keyway Width | 0.3115 INCHES NOMINAL 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 |
|---|---|
| 379D980-01 | 3/2 Design control — primary reference U.S. Government activity |
| 759J040 PC 42 | 5/2 Secondary reference U.S. Government activity |
| 379D980PC1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 3040-01-429-6877 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-429-6877: First End Diameter: 1.3750 INCHES NOMINAL IN; Second End Diameter: 1.5630 INCHES NOMINAL IN; First End Style: CIRCULAR GROOVED FLAT KEYWAY AND EXTERNALLY THREADED; Second End Keyway Width: 0.3745 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.
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.