The Pump,rotary, cataloged under National Stock Number 4320-01-341-1455, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Am-Dyn-Ic Fluid Power, Inc. Dba Adi. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-341-1455 |
| Primary Part Number | P50B178BYYD20-11VBYD20-1 |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Am-Dyn-Ic Fluid Power, Inc. Dba Adi |
| Status | ACTIVE |
| Discharge Connection Quantity | 2 |
| Intake Connection Type | THREADED INTERNAL |
| Pumping Element Operating Position | HORIZONTAL |
| Drive Connection Type | CLOSE COUPLED |
| Unpackaged Unit Length | 15.500 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity | 2400.0 REVOLUTIONS PER MINUTE |
| Discharge Connection Thread Size and Series/type Designator | 1.000-11-1/2 NPT |
| Drive Shaft Type | MACHINE KEYWAY |
| Intake Connection Thread Size and Series/type Designator | 1.250-11-1/2 NPT |
| Discharge Pressure | 000.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME |
| Maximum Discharge Flow Rate | 51.76 GALLONS PER MINUTE |
| Drive Shaft End Diameter | 1.250 INCHES NOMINAL IN |
| Rotary Pump Design | GEAR |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| Pump Rotation Direction | CLOCKWISE |
| 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 |
|---|---|
| P50B178BYYD20-11VBYD20-1 PRIMARY | Am-Dyn-Ic Fluid Power, Inc. Dba Adi (USA) |
| Reference | Meaning |
|---|---|
| 037YYD20-11VBY0 | C/1 Advisory reference — outside the item-of-supply concept Am-Dyn-Ic Fluid Power, Inc. Dba Adi |
NSN 4320-01-341-1455 is a Pump,rotary, manufactured by Am-Dyn-Ic Fluid Power, Inc. Dba Adi, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-341-1455 has 1 manufacturer part number on file: P50B178BYYD20-11VBYD20-1 (Am-Dyn-Ic Fluid Power, Inc. Dba Adi).
Key specifications for P50B178BYYD20-11VBYD20-1: Discharge Connection Quantity: 2; Intake Connection Type: THREADED INTERNAL; Pumping Element Operating Position: HORIZONTAL; Drive Connection Type: CLOSE COUPLED. 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.