The Gearshaft,spur, cataloged under National Stock Number 3040-01-314-2156, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-314-2156 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Material | STEEL |
| Gear Outside Diameter | 9.063 INCHES NOMINAL IN |
| Gear Material | STEEL |
| Face Width | 4.125 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 |
| Reference | Meaning |
|---|---|
| 26M68-305-5 | 3/2 Design control — primary reference U.S. Government activity |
| 26M68-305-5 | 5/9 Secondary reference At and T Document Development Organization |
| 26M68-305-05 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 26M68-305 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-314-2156 is a Gearshaft,spur, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3020-01-315-2661. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-314-2156: Shaft Material: STEEL; Gear Outside Diameter: 9.063 INCHES NOMINAL IN; Gear Material: STEEL; Special Features: 6 LIGHT HOLES 1.375 IN. DIA ON A 5.250 IN. BC DIA,8 LIGHTNING HOLES 0.406 IN. DIA ON A 8.250 IN. BC DIA IN. 4 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.