The Shaft,shouldered, cataloged under National Stock Number 3040-01-321-9972, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-321-9972 |
| Primary Part Number | 5544241 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Step Quantity | 3 |
| First End Diameter | 1.3700 INCHES NOMINAL IN |
| Second End Diameter | 0.6244 INCHES NOMINAL IN |
| Largest Step Diameter | 1.3700 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.5190 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | AMS5659 ASSN STD SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 19 |
| Second End Pressure Angle | 30.0 DEGREES NOMINAL |
| Second End Style | SPLINED (INVOLUTE) |
| Material | STEEL |
| Second End Pitch Diameter | 0.5938 INCHES NOMINAL IN |
| Second End Spline Length | 1.1300 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3040-01-321-9972 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-321-9972 has 2 manufacturer part numbers on file: 5544241 (Naval Sea Systems Command), 5544241 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 5544241: Step Quantity: 3; First End Diameter: 1.3700 INCHES NOMINAL IN; Second End Diameter: 0.6244 INCHES NOMINAL IN; Largest Step Diameter: 1.3700 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.
NSN 3040-01-321-9972 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.