The Motor,hydraulic, cataloged under National Stock Number 1650-01-148-2152, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Thomas Instrument, Incorporated. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-148-2152 |
| Primary Part Number | 4100608-1 |
| Item Name | Motor,hydraulic |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Thomas Instrument, Incorporated |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 |
| Spline Pitch | 20/40 |
| Spline Minor Diameter | 0.435 INCHES NOMINAL IN |
| Constant Displacement Per Revolution | 0.550 CUBIC INCHES |
| Displacement Type | CONSTANT |
| Connection Design | THREADED |
| Torque Load Rating | 384.0 INCH-POUNDS IN |
| Connection Type | DRAIN |
| Mounting Hole Diameter | 0.339 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN |
| Pitch Diameter | 0.500 INCHES NOMINAL IN |
| Spline Major Diameter | 0.572 INCHES NOMINAL IN |
| Shaft Rotation Direction | CLOCKWISE |
| Spline Pressure Angle in Deg | 30.0 |
| Drive Shaft Type | SPLINED, INVOLUTE INTERNAL |
| Spline Quantity | 10 |
| Mounting Bolt Hole Spacing | 3.536 BY 3.536 |
| Mounting Bolt Circle Diameter | 0.785 INCHES MINIMUM AND 0.815 INCHES MAXIMUM IN |
| Operating Speed at Rated Capacity in RPM | 8000.0 |
| Connection Government Spec/std | MS33649-4 |
| Material | ALUMINUM ALLOY HOUSING |
| Connection Quantity | 1 |
| Mounting Type | FLANGE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE SOURCE CONTROL NO |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 1650-01-148-2152 is a Motor,hydraulic, manufactured by Thomas Instrument, Incorporated, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-148-2152 has 2 manufacturer part numbers on file: 4100608-1 (Thomas Instrument, Incorporated), 4100608 (Thomas Instrument, Incorporated).
Key specifications for 4100608-1: Mounting Hole Quantity: 4; Spline Pitch: 20/40; Spline Minor Diameter: 0.435 INCHES NOMINAL IN; Constant Displacement Per Revolution: 0.550 CUBIC INCHES. 23 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.
NSN 1650-01-148-2152 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.