The Gearshaft,helical, cataloged under National Stock Number 3040-01-237-6384, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-237-6384 |
| Item Name | Gearshaft,helical |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Material | STEEL COMP 4140 |
| Teeth Quantity | 18 |
| Diametral Pitch | 8 |
| Gear Outside Diameter | 2.450 INCHES NOMINAL IN |
| Gear Material | STEEL COMP 4140 |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 1.500 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 |
|---|---|
| SSN637-709-2144235 PIECE 18 | 5/2 Secondary reference U.S. Government activity |
| 77832-60X3 PIECE 18 | 3/2 Design control — primary reference U.S. Government activity |
| 77832-60X3 | D/9 Drawing number reference only U.S. Government activity |
| SSN637-709-2144235 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-237-6384 is a Gearshaft,helical, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3040-01-237-6385. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-237-6384: Shaft Material: STEEL COMP 4140; Teeth Quantity: 18; Diametral Pitch: 8; Gear Outside Diameter: 2.450 INCHES NOMINAL IN. 7 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.