The Collar,shaft, cataloged under National Stock Number 3040-00-040-1511, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-040-1511 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 125 MICROINCHES OVERALL |
| Style Designator | PLAIN ROUND |
| Outside Diameter | 1.125 INCHES NOMINAL IN |
| Nominal Thread Size | 0.164 INCHES ALL HOLES IN |
| Angle Between Centerlines of Securing Holes in Deg | 117.0 |
| Securing Hole Quantity | 2 |
| Surface Treatment | PHOSPHATE |
| Bore Diameter | 0.6560 INCHES NOMINAL IN |
| Material | STEEL |
| Thickness | 0.250 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 |
|---|---|
| SM-B-148781 | 5/2 Secondary reference U.S. Government activity |
| 53868 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3040-00-040-1511 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): 6150-01-505-3741. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-00-040-1511: Surface Finish: 125 MICROINCHES OVERALL; Style Designator: PLAIN ROUND; Outside Diameter: 1.125 INCHES NOMINAL IN; Nominal Thread Size: 0.164 INCHES ALL HOLES IN. 10 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.