The Shaft,shouldered, cataloged under National Stock Number 3040-00-012-6080, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-012-6080 |
| Primary Part Number | S6137-66713-2 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES |
| Second End Angle Between Holes | 90.0 DEGREES NOMINAL |
| Second End Hole Diameter | 0.1610 INCHES NOMINAL IN |
| Step Quantity | 8 |
| First End Diameter | 1.8135 INCHES NOMINAL IN |
| Second End Diameter | 0.7500 INCHES NOMINAL IN |
| Largest Step Diameter | 2.430 INCHES NOMINAL IN |
| First End Style | INTERNAL THREADED |
| Material Document and Classification | AMS4340 ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.6600 INCHES MINIMUM AND 0.6650 INCHES MAXIMUM IN |
| Second End Distance From Hole Center to End | 0.083 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0940 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.942 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVE, TWO CROSS DRILLED HOLES AND EXTERNALLY THREADED |
| Material | STEEL COMP 4340 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S6137-66713-2 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 3040-00-012-6080 is a Shaft,shouldered, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-012-6080 has 1 manufacturer part number on file: S6137-66713-2 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6137-66713-2: Surface Finish: 16.0 MICROINCHES; Second End Angle Between Holes: 90.0 DEGREES NOMINAL; Second End Hole Diameter: 0.1610 INCHES NOMINAL IN; Step Quantity: 8. 16 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.