The Shaft,shouldered, cataloged under National Stock Number 3040-01-166-6779, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-166-6779 |
| Primary Part Number | 4648150 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 9.6200 INCHES MINIMUM AND 9.6250 INCHES MAXIMUM IN |
| Second End Diameter | 3.9350 INCHES MINIMUM AND 3.9360 INCHES MAXIMUM IN |
| Largest Step Diameter | 11.605 INCHES MINIMUM AND 11.645 INCHES MAXIMUM IN |
| First End Style | INTERNAL THREADED |
| Second End Keyway Width | 0.5000 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN |
| First End Internal Thread Length | 0.875 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.276 INCHES MINIMUM AND 0.277 INCHES MAXIMUM IN |
| Second End Style | FLAT KEYWAYS AND INTERNALLY THREADED |
| Second End Internal Thread Length | 0.750 INCHES NOMINAL IN |
| External Keyway Length | 6.500 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 |
|---|---|
| 4648150 | Naval Inventory Control Point Mechanicsburg (USA) |
| 4648150 | Allied Engineering and Production Corporation (USA) |
| 4648150 | Lake Shore Systems, Inc. (USA) |
| 4648150 | Appleton Marine Inc (USA) |
| Reference | Meaning |
|---|---|
| 4648150 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-166-6779 is a Shaft,shouldered, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-166-6779 has 4 manufacturer part numbers on file: 4648150 (Naval Inventory Control Point Mechanicsburg), 4648150 (Allied Engineering and Production Corporation), 4648150 (Lake Shore Systems, Inc.), 4648150 (Appleton Marine Inc).
Key specifications for 4648150: Surface Finish: 125.0 MICROINCHES; Step Quantity: 3; First End Diameter: 9.6200 INCHES MINIMUM AND 9.6250 INCHES MAXIMUM IN; Second End Diameter: 3.9350 INCHES MINIMUM AND 3.9360 INCHES MAXIMUM IN. 12 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.