The Collar,shaft, cataloged under National Stock Number 3040-01-174-4106, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-174-4106 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED SINGLE HOLE |
| Largest Diameter Length | 0.250 INCHES NOMINAL IN |
| Style Designator | ROUND STEPPED |
| Screw Thread Series Designator and Location | SINGLE HOLE NPT |
| Outside Diameter | 6.938 INCHES NOMINAL IN |
| Hole Diameter and Location | 0.3750 INCHES NOMINAL ALL HOLES IN |
| Nominal Thread Size | 0.250 INCHES SINGLE HOLE IN |
| Small End Diameter | 2.1870 INCHES MINIMUM AND 2.1880 INCHES MAXIMUM IN |
| Securing Hole Quantity | 1 |
| Bore Diameter | 2.0004 INCHES NOMINAL IN |
| Material | STEEL |
| Thickness | 2.406 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 |
|---|---|
| 4648144 | 5/9 Secondary reference Allied Engineering and Production Corporation |
| 4648144 | 3/2 Design control — primary reference U.S. Government activity |
| 4648145 | D/9 Drawing number reference only U.S. Government activity |
| 4648144 | 5/9 Secondary reference Appleton Marine Inc |
| 4648144 | 5/9 Secondary reference Lake Shore Systems, Inc. |
NSN 3040-01-174-4106 is a Collar,shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-174-4106: Securing Hole Type and Location: THREADED SINGLE HOLE; Largest Diameter Length: 0.250 INCHES NOMINAL IN; Style Designator: ROUND STEPPED; Screw Thread Series Designator and Location: SINGLE HOLE NPT. 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.