The Motor,hydraulic, cataloged under National Stock Number 4320-01-356-7822, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is DP Manufacturing Inc.. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-356-7822 |
| Primary Part Number | 55219 |
| Item Name | Motor,hydraulic |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | DP Manufacturing Inc. |
| Status | ACTIVE |
| Spline Minor Diameter | 0.870 INCHES NOMINAL IN |
| Constant Displacement Per Revolution | 5.400 CUBIC INCHES |
| Bolt Hole Thread Size | 0.312-18 |
| Displacement Type | CONSTANT OR VARIABLE |
| Connection Design | FLANGED |
| Torque Load Rating | 1508.0 INCH-POUNDS IN |
| Shaft Protrusion Length | 1.780 INCHES NOMINAL IN |
| Bolt Hole Spacing | 1.120 IN. WIDTH IN |
| Spline Length | 1.000 INCHES NOMINAL IN |
| Connection Type | INLET |
| Spline Major Diameter | 0.875 INCHES NOMINAL IN |
| Shaft Rotation Direction | CLOCKWISE AND COUNTERCLOCKWISE |
| Drive Shaft Type | SPLINED, STRAIGHT EXTERNAL |
| Spline Quantity | 13 |
| Bolt Hole Quantity | 4 |
| Operating Speed at Rated Capacity in RPM | 643.0 |
| 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 |
|---|---|
| 55219 PRIMARY | DP Manufacturing Inc. (USA) |
| Reference | Meaning |
|---|---|
| 056-2-AM | 5/9 Secondary reference Parker-Hannifin Corp Div Hydraulic Pump/motor Division |
| IN-2256 | D/9 Drawing number reference only Parker-Hannifin Corp Div Hydraulic Pump/motor Division |
NSN 4320-01-356-7822 is a Motor,hydraulic, manufactured by DP Manufacturing Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-356-7822 has 1 manufacturer part number on file: 55219 (DP Manufacturing Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5826-01-680-7271. Verify interchangeability with system specifications before substitution.
Key specifications for 55219: Spline Minor Diameter: 0.870 INCHES NOMINAL IN; Constant Displacement Per Revolution: 5.400 CUBIC INCHES; Bolt Hole Thread Size: 0.312-18; Displacement Type: CONSTANT OR VARIABLE. 18 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.