The Pump,rotary, cataloged under National Stock Number 4320-01-331-1693, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Parker Hannifin Corporation Div Cylinder Division. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-331-1693 |
| Primary Part Number | P50B-278-BI-0S20-7-D-OS20-1 |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Parker Hannifin Corporation Div Cylinder Division |
| Status | ACTIVE |
| Discharge Connection Quantity | 2 |
| Intake Connection Type | RECTANGULAR FLANGE |
| Pumping Element Operating Position | HORIZONTAL |
| Drive Shaft Length | 2.120 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity | 2000.0 REVOLUTIONS PER MINUTE |
| Drive Shaft Type | SPLINED, INVOLUTE EXTERNAL |
| Discharge Pressure | 000.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME |
| Maximum Discharge Flow Rate | 45.0 GALLONS PER MINUTE |
| Rotary Pump Design | GEAR |
| Discharge Connection Type | RECTANGULAR FLANGE |
| Intake Connection Quantity | 2 |
| Pump Rotation Direction | COUNTERCLOCKWISE |
| Mounting Type | FLANGE |
| Operation Method | POWERED |
| 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 |
|---|---|
| P50B-278-BI-0S20-7-D-OS20-1 PRIMARY | Parker Hannifin Corporation Div Cylinder Division (USA) |
| Reference | Meaning |
|---|---|
| 7-722-000068 | 5/9 Secondary reference Minnpar, Llc Dba Minnpar |
| 7-722-000068 | 5/9 Secondary reference Grove U.s. Llc Dba Grove Us Llc |
NSN 4320-01-331-1693 is a Pump,rotary, manufactured by Parker Hannifin Corporation Div Cylinder Division, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-331-1693 has 1 manufacturer part number on file: P50B-278-BI-0S20-7-D-OS20-1 (Parker Hannifin Corporation Div Cylinder Division).
Key specifications for P50B-278-BI-0S20-7-D-OS20-1: Discharge Connection Quantity: 2; Intake Connection Type: RECTANGULAR FLANGE; Pumping Element Operating Position: HORIZONTAL; Drive Shaft Length: 2.120 INCHES NOMINAL IN. 14 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.