The Gearshaft,spur, cataloged under National Stock Number 3040-00-853-7790, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-00-853-7790 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL |
| Shaft Largest Diameter | 0.131 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN |
| Shaft End Size | 0.055 INCHES AND 0.094 INCHES IN |
| Teeth Quantity | 10 |
| Diametral Pitch | 90 |
| Gear Outside Diameter | 0.133 INCHES NOMINAL IN |
| Longer Shaft Segment Length | 0.651 INCHES NOMINAL IN |
| Gear Material | STEEL |
| Shaft End Type | PLAIN AND CROSS DRILLED PARTIAL |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.200 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 |
|---|---|
| 3888K76 | D/9 Drawing number reference only U.S. Government activity |
| 3888K76P001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-853-7790 is a Gearshaft,spur, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-853-7790: Shaft Type: SHOULDERED; Shaft Material: STEEL; Shaft Largest Diameter: 0.131 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN; Shaft End Size: 0.055 INCHES AND 0.094 INCHES IN. 13 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.