The Gear Cluster, cataloged under National Stock Number 3020-01-073-7543, 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 Lockheed Martin Corp Electronics and Missiles Div. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-073-7543 |
| Primary Part Number | 125292 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lockheed Martin Corp Electronics and Missiles Div |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.719 INCHES BOTH ENDS IN |
| Counterbore Nominal Diameter | 0.8120 INCHES BOTH ENDS IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | W/COUNTERBORE BOTH ENDS |
| Precision Classification | QUALITY NUMBER 9 ALL GEARS |
| Nominal Overall Length | 1.075 INCHES IN |
| Nominal Outside Diameter | 1.5600 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 5.4600 INCHES FIRST GEAR IN |
| Surface Treatment | PHOSPHATE MANGANESE OVERALL |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.500 INCHES SECOND END IN |
| Counterbore Nominal Depth | 0.531 INCHES FIRST END IN |
| Construction | WELDED |
| 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 |
|---|---|
| 125292 PRIMARY | Lockheed Martin Corp Electronics and Missiles Div (USA) |
NSN 3020-01-073-7543 is a Gear Cluster, manufactured by Lockheed Martin Corp Electronics and Missiles Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-073-7543 has 1 manufacturer part number on file: 125292 (Lockheed Martin Corp Electronics and Missiles Div).
Key specifications for 125292: Bore Nominal Diameter: 0.719 INCHES BOTH ENDS IN; Counterbore Nominal Diameter: 0.8120 INCHES BOTH ENDS IN; Design Type: SPUR SECOND GEAR; Design Type: SPUR FIRST GEAR. 14 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.