The Gearshaft,bevel, cataloged under National Stock Number 3040-00-139-0685, 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, Inc Dba Ontic Us. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-139-0685 |
| Primary Part Number | 2039670-1 |
| Item Name | Gearshaft,bevel |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Shaft Type | STRAIGHT |
| Shaft Material | STEEL COMP 4330 |
| Shaft End Size | 0.750 INCHES IN |
| Shaft Diameter | 0.750 INCHES NOMINAL IN |
| Teeth Quantity | 23 |
| Pitch Angle | 13.5667 DEGREES |
| Tooth Direction | RIGHT |
| Diametral Pitch | 16 |
| Teeth Type | STRAIGHT |
| Gear Outside Diameter | 1.574 INCHES NOMINAL IN |
| Hardness Rating | 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL |
| Gear Material | STEEL COMP 4330 |
| Shaft Length | 2.095 INCHES NOMINAL IN |
| Shaft End Type | SPLINED INVOLUTE |
| Gear Location on Shaft | ON END OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2039670-1 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 2039670-1 | 5/9 Secondary reference Moog Military Aircraft Llc |
| 2039670-1 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
NSN 3040-00-139-0685 is a Gearshaft,bevel, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-139-0685 has 1 manufacturer part number on file: 2039670-1 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 2039670-1: Shaft Type: STRAIGHT; Shaft Material: STEEL COMP 4330; Shaft End Size: 0.750 INCHES IN; Shaft Diameter: 0.750 INCHES NOMINAL 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.
NSN 3040-00-139-0685 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.