The Collar,shaft, cataloged under National Stock Number 3040-00-288-3010, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-288-3010 |
| 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 | 0.172 INCHES NOMINAL IN |
| Style Designator | ROUND STEPPED |
| Material Document and Classification | QQ-B-626, ALLOY 360, 1/2H FED SPEC SINGLE MATERIAL RESPONSE |
| Screw Thread Series Designator and Location | SINGLE HOLE UNIFIED NATIONAL COARSE (UNC) |
| Outside Diameter | 0.438 INCHES NOMINAL IN |
| Nominal Thread Size | 0.138 INCHES SINGLE HOLE IN |
| Angle Between Centerlines of Securing Holes in Deg | 90.0 |
| Small End Diameter | 0.375 INCHES NOMINAL IN |
| Securing Hole Quantity | 2 |
| Surface Treatment | CHROMIUM |
| Bore Diameter | 0.2500 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 360 |
| Thickness | 0.188 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 |
|---|---|
| SCB125592 | 3/2 Design control — primary reference U.S. Government activity |
| SK5320-5055 | 5/9 Secondary reference Leeds and Northrup Co a Unit of General Signal Corp |
NSN 3040-00-288-3010 is a Collar,shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-288-3010: Securing Hole Type and Location: THREADED SINGLE HOLE; Largest Diameter Length: 0.172 INCHES NOMINAL IN; Style Designator: ROUND STEPPED; Material Document and Classification: QQ-B-626, ALLOY 360, 1/2H FED SPEC SINGLE MATERIAL RESPONSE. 14 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.