The Motor,hydraulic, cataloged under National Stock Number 4320-01-437-2312, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is General Dynamics Land Systems Inc.. Government technical data includes 29 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-437-2312 |
| Primary Part Number | 7566504-003 |
| Item Name | Motor,hydraulic |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | General Dynamics Land Systems Inc. |
| Status | ACTIVE |
| Keyway Depth | 0.0938 INCHES NOMINAL IN |
| Mounting Hole Quantity | 4 |
| Shaft Diameter | 0.6245 INCHES NOMINAL IN |
| Constant Displacement Per Revolution | 0.260 CUBIC INCHES |
| Key Width | 0.1875 INCHES NOMINAL IN |
| Displacement Type | CONSTANT |
| Connection Design | THREADED |
| Torque Load Rating | 80.0 INCH-POUNDS IN |
| Connection Type | INLET AND OUTLET |
| Mounting Hole Diameter | 0.250 INCHES NOMINAL IN |
| Thread Location | INTERNAL |
| Shaft Rotation Direction | CLOCKWISE |
| Thread Direction | RIGHT-HAND |
| Accessory Components and Quantity | MODEL 128 PEGASUS SERVO VALVE 1; TACHOMETER 1 |
| Drive Shaft Type | KEYED |
| Key Height | 0.1875 INCHES NOMINAL IN |
| Maximum Working Pressure Rating at Specified Temp Range | 2000.0PSI AT MINUS 50 DEG F TO PLUS 116 DEG F DEGF |
| Keyway Length | 0.7500 INCHES NOMINAL IN |
| Mounting Bolt Hole Spacing | 2.25 IN. BY 2.375 IN. IN |
| Key Length | 0.7500 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 4000.0 |
| Thread Size | 0.500-20 AND 0.5625-18 |
| Keyway Width | 0.1875 INCHES NOMINAL IN |
| Screw Thread Series Designator | SAE |
| Surface Treatment | PRIMER ZINC CHROMATE HOUSING |
| Connection Government Spec/std | MS33649-5 AND MS33649-6 |
| Material | ALUMINUM ALLOY HOUSING |
| Connection Quantity | 2 |
| Mounting Type | FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7566504-003 | General Dynamics Land Systems Inc. (USA) |
| Reference | Meaning |
|---|---|
| 000146-E | 5/1 Secondary reference U.S. Government activity |
| 7565937 | 5/9 Secondary reference General Dynamics Land Systems Inc. |
| MF.26 TYPE 01-291 | 3/2 Design control — primary reference U.S. Government activity |
| 7565937-001 | 5/1 Secondary reference General Dynamics Land Systems Inc. |
NSN 4320-01-437-2312 is a Motor,hydraulic, manufactured by General Dynamics Land Systems Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-437-2312 has 1 manufacturer part number on file: 7566504-003 (General Dynamics Land Systems Inc.).
Key specifications for 7566504-003: Keyway Depth: 0.0938 INCHES NOMINAL IN; Mounting Hole Quantity: 4; Shaft Diameter: 0.6245 INCHES NOMINAL IN; Constant Displacement Per Revolution: 0.260 CUBIC INCHES. 29 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 4320-01-437-2312 has DEMIL Code B. 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.