The Gear Cluster, cataloged under National Stock Number 3020-00-406-7973, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Hamilton Sundstrand Corporation Div Mission Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Gear Cluster |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Hamilton Sundstrand Corporation Div Mission Systems (CAGE 26581) |
| Parameter | Value |
|---|---|
| NSN | 3020-00-406-7973 |
| Primary Part Number | 341676-1 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hamilton Sundstrand Corporation Div Mission Systems |
| Status | ACTIVE |
| 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 |
|---|---|
| 341676-1 PRIMARY | Hamilton Sundstrand Corporation Div Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| 341676 | D/9 Drawing number reference only Hamilton Sundstrand Corporation Div Mission Systems |
NSN 3020-00-406-7973 is a Gear Cluster, manufactured by Hamilton Sundstrand Corporation Div Mission Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-406-7973 has 1 manufacturer part number on file: 341676-1 (Hamilton Sundstrand Corporation Div Mission Systems).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-558-9492. Verify interchangeability with system specifications before substitution.
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.