The Gearshaft,multiple Gears, cataloged under National Stock Number 3040-01-121-2650, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Tyrolit Wickman Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-121-2650 |
| Primary Part Number | 355670-1 |
| Item Name | Gearshaft,multiple Gears |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Tyrolit Wickman Inc |
| Status | ACTIVE |
| Teeth Quantity | 160 SECOND GEAR |
| Teeth Quantity | 28 FIRST GEAR |
| Gear Quantity | 2 |
| Diametral Pitch | 48 ALL GEARS |
| Gear Type | SPUR ALL GEARS |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 355670-1 PRIMARY | Tyrolit Wickman Inc (USA) |
| 355670-1-1 | Raytheon Company (USA) |
| 355670-1-1 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 355670-1-1 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 3040-01-121-2650 is a Gearshaft,multiple Gears, manufactured by Tyrolit Wickman Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-121-2650 has 3 manufacturer part numbers on file: 355670-1 (Tyrolit Wickman Inc), 355670-1-1 (Raytheon Company), 355670-1-1 (Raytheon Company Dba Raytheon Co).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-122-0928. Verify interchangeability with system specifications before substitution.
Key specifications for 355670-1: Teeth Quantity: 160 SECOND GEAR; Teeth Quantity: 28 FIRST GEAR; Gear Quantity: 2; Diametral Pitch: 48 ALL GEARS. 6 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.