The Collar,shaft, cataloged under National Stock Number 3040-00-024-1657, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-024-1657 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Style Designator | ROUND W/SINGLE LOBE |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Distance From Bore Centerline to End | 1.000 INCHES NOMINAL IN |
| Nominal Thread Size | 0.500 INCHES SINGLE HOLE IN |
| Securing Hole Quantity | 1 |
| Bore Diameter | 1.2500 INCHES NOMINAL IN |
| Material | IRON CAST |
| Thickness | 1.500 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 |
|---|---|
| P-2340 | 3/9 Design control — primary reference Lull Corp |
NSN 3040-00-024-1657 is a Collar,shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3020-00-353-2744. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-00-024-1657: Style Designator: ROUND W/SINGLE LOBE; Outside Diameter: 2.000 INCHES NOMINAL IN; Distance From Bore Centerline to End: 1.000 INCHES NOMINAL IN; Nominal Thread Size: 0.500 INCHES SINGLE HOLE IN. 8 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.