The Gearshaft,bevel, cataloged under National Stock Number 3040-00-773-6744, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Bmt Aerospace Usa, Inc.. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-773-6744 |
| Primary Part Number | 390940 |
| Item Name | Gearshaft,bevel |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Bmt Aerospace Usa, Inc. |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP E9310 |
| Shaft Largest Diameter | 0.580 INCHES MINIMUM AND 0.581 INCHES MAXIMUM IN |
| Shaft End Size | 0.250 INCHES IN |
| Teeth Quantity | 20 |
| Pitch Angle | 31.2184 DEGREES |
| Diametral Pitch | 16.5000 |
| Teeth Type | STRAIGHT |
| Gear Outside Diameter | 1.343 INCHES MINIMUM AND 1.346 INCHES MAXIMUM IN |
| Hardness Rating | 81.0 ROCKWELL A MINIMUM AND 85.0 ROCKWELL A MAXIMUM OVERALL |
| Gear Material | STEEL COMP E9310 |
| Shaft Length | 1.070 INCHES MINIMUM AND 1.090 INCHES MAXIMUM IN |
| Shaft End Type | THREADED EXTERNAL |
| Gear Location on Shaft | ON END OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3040-00-773-6744 is a Gearshaft,bevel, manufactured by Bmt Aerospace Usa, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-773-6744 has 2 manufacturer part numbers on file: 390940 (Bmt Aerospace Usa, Inc.), 390940 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 390940: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP E9310; Shaft Largest Diameter: 0.580 INCHES MINIMUM AND 0.581 INCHES MAXIMUM IN; Shaft End Size: 0.250 INCHES IN. 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.