The Gearcase-Motor, cataloged under National Stock Number 3010-00-588-4816, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 25 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. 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 | 3010-00-588-4816 |
| Primary Part Number | 78976 |
| Item Name | Gearcase-Motor |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Duty Cycle | CONTINUOUS |
| Phase | SINGLE INPUT |
| Keyway Center to Shaft End Distance | 0.5625 INCHES NOMINAL SINGLE END IN |
| Shaft Diameter | 1.023 INCHES MINIMUM AND 1.025 INCHES MAXIMUM SINGLE END IN |
| Frequency in Hertz | 60.0 INPUT |
| Shaft Center to Mounting Surface Distance | 4.563 INCHES SINGLE END IN |
| Angle of Shaft to Mounting Base | 90.0 DEGREES SINGLE END |
| Current Type | AC INPUT |
| Winding Type | INDUCTION-SQUIRREL CAGE |
| Woodruff Key Size Designation | 11 SINGLE END |
| Geared Head Output Shaft Alignment Position | ANGLED TO ARMATURE/ROTOR AXIS SINGLE END |
| Thread Length | 0.6250 INCHES NOMINAL SINGLE END IN |
| Cooling Method | NONVENTILATED |
| Shaft Rotation Direction | CLOCKWISE OR COUNTERCLOCKWISE SINGLE END |
| Features Provided | VERTICAL MOUNTING POSITION AND INTEGRAL BRAKE AND HORIZONTAL MOUNTING POSITION |
| Nominal Thread Size | 1.000 INCHES SINGLE END IN |
| Connection Type and Voltage Rating in Volts | 220.0 LINE TO NEUTRAL SINGLE INPUT |
| Length of Shaft From Housing | 2.000 INCHES SINGLE END IN |
| Speed Control Method and Device Type | AUTOMATIC MECHANICAL |
| Enclosure Feature | TOTALLY ENCLOSED |
| Shaft End Characteristic | A2 FIRST STYLE AND A11 SECOND STYLE SINGLE END |
| Terminal Type and Quantity | 1 CONNECTOR, PLUG |
| Thread Series Designator | UN SINGLE END |
| Inclosure Specification | COMMERCIAL |
| 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 |
|---|---|
| 78976 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
NSN 3010-00-588-4816 is a Gearcase-Motor, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-588-4816 has 1 manufacturer part number on file: 78976 (L3harris Technologies, Inc Div Space & Airborne Systems).
1 possible match (shared part number, not a government interchangeability claim): 5130-00-971-5208. Verify interchangeability with system specifications before substitution.
Key specifications for 78976: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Duty Cycle: CONTINUOUS; Phase: SINGLE INPUT; Keyway Center to Shaft End Distance: 0.5625 INCHES NOMINAL SINGLE END IN. 25 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.