The Shaft,shouldered, cataloged under National Stock Number 3040-00-588-2870, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-00-588-2870 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| FSC Application Data | DRIVE AND SUMP ASSEMBLY,TRANSMISSION,HELICOPTER |
| Step Quantity | 5 |
| First End Diameter | 0.4905 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN |
| Second End Diameter | 0.4658 INCHES MINIMUM AND 0.4688 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.498 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN |
| Second End Spline Minor Diameter | 0.3669 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Second End Spline Major Diameter | 0.4658 INCHES MINIMUM AND 0.4688 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-8690 MIL SPEC SINGLE MATERIAL RESPONSE |
| First End Spline Quantity | 14 |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 14 |
| Second End Pressure Angle | 30.0000 DEGREES NOMINAL |
| Second End Style | SPLINED (INVOLUTE) |
| Material | STEEL |
| Second End Pitch Diameter | 0.4375 INCHES NOMINAL IN |
| Second End Spline Length | 0.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| GA6209 | 3/2 Design control — primary reference U.S. Government activity |
| GA6209 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
NSN 3040-00-588-2870 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-588-2870: FSC Application Data: DRIVE AND SUMP ASSEMBLY,TRANSMISSION,HELICOPTER; Step Quantity: 5; First End Diameter: 0.4905 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN; Second End Diameter: 0.4658 INCHES MINIMUM AND 0.4688 INCHES MAXIMUM IN. 17 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.
NSN 3040-00-588-2870 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.