The Gearshaft,helical, cataloged under National Stock Number 3040-00-659-7615, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-659-7615 |
| Item Name | Gearshaft,helical |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Type | STRAIGHT |
| Shaft Material | STEEL COMP 440C |
| Helix Angle | 8.6600 DEGREES |
| Shaft End Size | 0.061 INCHES IN |
| Shaft Diameter | 0.123 INCHES NOMINAL IN |
| Teeth Quantity | 11 |
| Tooth Direction | LEFT |
| Diametral Pitch | 72 |
| Teeth Type | SINGLE HELIX |
| Gear Outside Diameter | 0.181 INCHES NOMINAL IN |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL |
| Gear Material | STEEL COMP 440C |
| Shaft Length | 0.446 INCHES NOMINAL IN |
| Shaft End Type | PLAIN |
| Gear Location on Shaft | MIDPOINT BETWEEN ENDS OF SHAFT |
| Pressure Angle | 14.5000 DEGREES |
| Face Width | 0.140 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 |
|---|---|
| 900284 | 3/9 Design control — primary reference Bell and Howell Phillipsburg Co Corporate Offices |
NSN 3040-00-659-7615 is a Gearshaft,helical, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-659-7615: Shaft Type: STRAIGHT; Shaft Material: STEEL COMP 440C; Helix Angle: 8.6600 DEGREES; Shaft End Size: 0.061 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.
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.