The Gearshaft,bevel, cataloged under National Stock Number 3040-00-615-8442, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-615-8442 |
| Primary Part Number | 6158442 |
| Item Name | Gearshaft,bevel |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 1335 OR STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8630 |
| Shaft Largest Diameter | 0.874 INCHES NOMINAL IN |
| Shaft End Size | 0.874 INCHES AND 0.687 INCHES IN |
| Teeth Quantity | 16 |
| Pitch Angle | 41.0508 DEGREES |
| Tooth Direction | RIGHT |
| Diametral Pitch | 8/10 |
| Teeth Type | STRAIGHT |
| Gear Outside Diameter | 2.150 INCHES NOMINAL IN |
| Longer Shaft Segment Length | 5.670 INCHES NOMINAL IN |
| Gear Material | STEEL COMP 1335 OR STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8630 |
| Shaft Length | 8.750 INCHES NOMINAL IN |
| Shaft End Type | PLAIN AND SQUARE |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.620 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 |
|---|---|
| 6158442 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| Reference | Meaning |
|---|---|
| 158442 | 5/9 Secondary reference Army, United States Department of the Dba Watervliet Arsenal Div Business Development |
NSN 3040-00-615-8442 is a Gearshaft,bevel, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-615-8442 has 1 manufacturer part number on file: 6158442 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-206-7439. Verify interchangeability with system specifications before substitution.
Key specifications for 6158442: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 1335 OR STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8630; Shaft Largest Diameter: 0.874 INCHES NOMINAL IN; Shaft End Size: 0.874 INCHES AND 0.687 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.