The Gearshaft,spur, cataloged under National Stock Number 3040-00-805-5822, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Ontic Engineering & Manufacturing Uk Limited Div Ontic Engineering and Manufacturing Uk Limited. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-805-5822 |
| Primary Part Number | 393858 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Ontic Engineering & Manufacturing Uk Limited Div Ontic Engineering and Manufacturing Uk Limited |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 303 |
| Shaft Largest Diameter | 0.062 INCHES NOMINAL IN |
| Shaft End Size | 0.039 INCHES AND 0.046 INCHES IN |
| Teeth Quantity | 12 |
| Diametral Pitch | 128 |
| Gear Outside Diameter | 0.112 INCHES NOMINAL IN |
| Longer Shaft Segment Length | 0.478 INCHES NOMINAL IN |
| Gear Material | STEEL COMP 303 |
| Shaft End Type | PLAIN |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.125 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 |
| Part Number | Manufacturer |
|---|---|
| 393858 | Ontic Engineering & Manufacturing Uk Limited Div Ontic Engineering and Manufacturing Uk Limited (GBR) |
| Reference | Meaning |
|---|---|
| 393858 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-805-5822 is a Gearshaft,spur, manufactured by Ontic Engineering & Manufacturing Uk Limited Div Ontic Engineering and Manufacturing Uk Limited, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-805-5822 has 1 manufacturer part number on file: 393858 (Ontic Engineering & Manufacturing Uk Limited Div Ontic Engineering and Manufacturing Uk Limited).
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-124-3870, 5305-01-166-6894. Verify interchangeability with system specifications before substitution.
Key specifications for 393858: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 303; Shaft Largest Diameter: 0.062 INCHES NOMINAL IN; Shaft End Size: 0.039 INCHES AND 0.046 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.