The Gearshaft,bevel, cataloged under National Stock Number 3040-00-457-0716, 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 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-457-0716 |
| Primary Part Number | S6135-20625-4 |
| Item Name | Gearshaft,bevel |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP E9310 |
| Shaft Largest Diameter | 3.378 INCHES MINIMUM AND 3.379 INCHES MAXIMUM IN |
| Shaft End Size | 1.625 INCHES IN |
| Teeth Quantity | 40 |
| Pitch Angle | 17.7500 DEGREES |
| Tooth Direction | RIGHT |
| Diametral Pitch | 8 |
| Teeth Type | SPIRAL |
| Gear Outside Diameter | 7.500 INCHES NOMINAL IN |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM OVERALL |
| Gear Material | STEEL COMP E9310 |
| Shaft Length | 8.860 INCHES NOMINAL IN |
| Shaft End Type | THREADED EXTERNAL |
| Gear Location on Shaft | ON END OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 1.400 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S6135-20625-4 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| S6135-20625-4 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| S6135-20625-4 | 5/9 Secondary reference U.S. Government activity |
NSN 3040-00-457-0716 is a Gearshaft,bevel, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-457-0716 has 2 manufacturer part numbers on file: S6135-20625-4 (Leonardo Spa Helicopters Division - Production Site), S6135-20625-4 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6135-20625-4: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP E9310; Shaft Largest Diameter: 3.378 INCHES MINIMUM AND 3.379 INCHES MAXIMUM IN; Shaft End Size: 1.625 INCHES 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 3040-00-457-0716 has DEMIL Code B. 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.