The Shaft,shouldered, cataloged under National Stock Number 3040-01-721-9776, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-721-9776 |
| Primary Part Number | 4498792 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Step Quantity | 6 |
| First End Diameter | 3.0278 INCHES MINIMUM AND 3.0321 INCHES MAXIMUM IN |
| First End Spline Major Diameter | 2.740 INCHES MINIMUM AND 2.745 INCHES MAXIMUM IN |
| Second End Diameter | 2.7560 INCHES MINIMUM AND 2.7566 INCHES MAXIMUM IN |
| Largest Step Diameter | 3.250 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 2.621 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED AND SPLINED (STRAIGHT) |
| Second End Spline Major Diameter | 2.745 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN |
| Second End Groove Diameter | 3.250 INCHES NOMINAL IN |
| First End Spline Length | 2.875 INCHES NOMINAL IN |
| First End Spline Quantity | 16 |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 3.110 INCHES MINIMUM AND 3.235 INCHES MAXIMUM IN |
| Second End Spline Quantity | 54 |
| Second End Distance From End to Groove | 2.16 INCHES MINIMUM AND 2.40 INCHES MAXIMUM IN |
| First End Groove Diameter | 2.485 INCHES MINIMUM AND 2.490 INCHES MAXIMUM IN |
| Second End Style | TWO CIRCULAR GROOVES, SPLINED AND INTERNALLY THREADED |
| First End Spline Minor Diameter | 2.505 INCHES MINIMUM AND 2.515 INCHES MAXIMUM IN |
| Second End Internal Thread Length | 1.250 INCHES NOMINAL IN |
| Second End Spline Length | 2.16 INCHES MINIMUM AND 2.40 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4498792 PRIMARY | Oshkosh Defense Llc (USA) |
NSN 3040-01-721-9776 is a Shaft,shouldered, manufactured by Oshkosh Defense Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-721-9776 has 1 manufacturer part number on file: 4498792 (Oshkosh Defense Llc).
Key specifications for 4498792: Step Quantity: 6; First End Diameter: 3.0278 INCHES MINIMUM AND 3.0321 INCHES MAXIMUM IN; First End Spline Major Diameter: 2.740 INCHES MINIMUM AND 2.745 INCHES MAXIMUM IN; Second End Diameter: 2.7560 INCHES MINIMUM AND 2.7566 INCHES MAXIMUM IN. 20 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.