The Gearcase-Motor, cataloged under National Stock Number 3010-01-090-5750, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is U S Dept of Transportation Federal Aviation Administration. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-090-5750 |
| Primary Part Number | A2621A1 |
| Item Name | Gearcase-Motor |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | U S Dept of Transportation Federal Aviation Administration |
| Status | ACTIVE |
| Duty Cycle | CONTINUOUS |
| Phase | SINGLE INPUT |
| Frequency in Hertz | 60.0 INPUT |
| Current Type | AC INPUT |
| Winding Type | SYNCHRONOUS |
| Cooling Method | NATURAL CONVECTION VENTILATED |
| Connection Type and Voltage Rating in Volts | 115.0 LINE TO NEUTRAL SINGLE INPUT |
| Speed Control Method and Device Type | AUTOMATIC MECHANICAL |
| Enclosure Feature | TOTALLY ENCLOSED |
| Geared Head Output Shaft Speed Rating | 15.000 SINGLE REVOLUTIONS PER MINUTE SINGLE END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| A2621A1 PRIMARY | U S Dept of Transportation Federal Aviation Administration (USA) |
| Reference | Meaning |
|---|---|
| A2621A1 | 5/9 Secondary reference General Time Controls Inc |
| PMH-133 | 5/9 Secondary reference Eagle Signal Controls Div of Mark IV Industries Inc |
NSN 3010-01-090-5750 is a Gearcase-Motor, manufactured by U S Dept of Transportation Federal Aviation Administration, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-090-5750 has 1 manufacturer part number on file: A2621A1 (U S Dept of Transportation Federal Aviation Administration).
Key specifications for A2621A1: Duty Cycle: CONTINUOUS; Phase: SINGLE INPUT; Frequency in Hertz: 60.0 INPUT; Current Type: AC INPUT. 10 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.