The Gearshaft,spur, cataloged under National Stock Number 3040-00-563-3849, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 13 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 | 3040-00-563-3849 |
| Primary Part Number | 8171855 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL CORROSION RESISTING |
| Shaft Largest Diameter | 0.250 INCHES NOMINAL IN |
| Shaft End Size | 0.250 INCHES AND 0.219 INCHES IN |
| Teeth Quantity | 16 |
| Diametral Pitch | 84 |
| Gear Outside Diameter | 0.293 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN |
| Longer Shaft Segment Length | 1.845 INCHES NOMINAL IN |
| Gear Material | STEEL CORROSION RESISTING |
| Shaft End Type | CIRCULAR GROOVED AND PLAIN |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 14.5000 DEGREES |
| Face Width | 0.185 INCHES MINIMUM AND 0.189 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 |
| Part Number | Manufacturer |
|---|---|
| 8171855 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 3040-00-563-3849 is a Gearshaft,spur, manufactured by Us Army Aviation and Missile Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-563-3849 has 1 manufacturer part number on file: 8171855 (Us Army Aviation and Missile Command).
Key specifications for 8171855: Shaft Type: SHOULDERED; Shaft Material: STEEL CORROSION RESISTING; Shaft Largest Diameter: 0.250 INCHES NOMINAL IN; Shaft End Size: 0.250 INCHES AND 0.219 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.