The Shaft,shouldered, cataloged under National Stock Number 3040-00-908-9944, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Cunico Corporation. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-908-9944 |
| Primary Part Number | 41720-3 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Cunico Corporation |
| Status | ACTIVE |
| Step Quantity | 3 |
| First End Diameter | 0.5940 INCHES NOMINAL IN |
| Second End Diameter | 0.6250 INCHES NOMINAL IN |
| Largest Step Diameter | 0.688 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Keyway Width | 0.1880 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.0940 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLAT KEYWAY |
| Material | STEEL |
| External Keyway Length | 1.5000 INCHES NOMINAL 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 |
| Part Number | Manufacturer |
|---|---|
| 41720-3 PRIMARY | Cunico Corporation (USA) |
| Reference | Meaning |
|---|---|
| 41720-3 | 5/9 Secondary reference U.S. Government activity |
NSN 3040-00-908-9944 is a Shaft,shouldered, manufactured by Cunico Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-908-9944 has 1 manufacturer part number on file: 41720-3 (Cunico Corporation).
Key specifications for 41720-3: Step Quantity: 3; First End Diameter: 0.5940 INCHES NOMINAL IN; Second End Diameter: 0.6250 INCHES NOMINAL IN; Largest Step Diameter: 0.688 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.