The Motor,hydraulic, cataloged under National Stock Number 4320-01-377-6661, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is White Hydraulics Inc. Government technical data includes 19 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 | 4320-01-377-6661 |
| Primary Part Number | HB12-08-051 |
| Item Name | Motor,hydraulic |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | White Hydraulics Inc |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 |
| Constant Displacement Per Revolution | 12.000 CUBIC INCHES |
| Displacement Type | CONSTANT |
| Connection Design | THREADED |
| Spline Length | 1.953 INCHES NOMINAL IN |
| Connection Type | INLET |
| Mounting Hole Diameter | 0.516 INCHES NOMINAL IN |
| Spline Major Diameter | 1.250 INCHES NOMINAL IN |
| Thread Location | INTERNAL |
| Shaft Rotation Direction | CLOCKWISE |
| Thread Direction | RIGHT-HAND |
| Drive Shaft Type | SPLINED, STRAIGHT EXTERNAL |
| Spline Quantity | 14 |
| Mounting Bolt Circle Diameter | 4.188 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 500.0 |
| Thread Size | 1-1/16-12 |
| Screw Thread Series Designator | UN |
| Connection Quantity | 2 |
| Mounting Type | FLANGE |
| 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 |
|---|---|
| HB12-08-051 PRIMARY | White Hydraulics Inc (USA) |
NSN 4320-01-377-6661 is a Motor,hydraulic, manufactured by White Hydraulics Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-377-6661 has 1 manufacturer part number on file: HB12-08-051 (White Hydraulics Inc).
Key specifications for HB12-08-051: Mounting Hole Quantity: 4; Constant Displacement Per Revolution: 12.000 CUBIC INCHES; Displacement Type: CONSTANT; Connection Design: THREADED. 19 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.