The Pump,rotary, cataloged under National Stock Number 4320-01-373-3124, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Concentric Rockford Inc. Government technical data includes 23 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-01-373-3124 |
| Primary Part Number | GT20W-2V15S1-A21A-61 |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Concentric Rockford Inc |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | THREADED INTERNAL |
| Pumping Element Operating Position | HORIZONTAL |
| Drive Shaft Length | 1.500 INCHES NOMINAL IN |
| Drive Connection Type | RIGID COUPLED |
| Unpackaged Unit Length | 10.100 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity | 1200.0 REVOLUTIONS PER MINUTE |
| Unpackaged Unit Width | 6.880 INCHES NOMINAL IN |
| Discharge Connection Thread Size and Series/type Designator | 0.8750-14 UNF |
| Drive Shaft Type | MACHINE KEYWAY |
| Intake Connection Thread Size and Series/type Designator | 1.3125-12 UNF |
| Unpackaged Unit Height | 6.100 INCHES NOMINAL IN |
| Discharge Pressure | 00.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES |
| Maximum Discharge Flow Rate | 15.0 GALLONS PER MINUTE |
| Drive Shaft End Diameter | 1.000 INCHES NOMINAL IN |
| Rotary Pump Design | GEAR |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Material | STEEL PUMP BASIC |
| 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 |
|---|---|
| GT20W-2V15S1-A21A-61 PRIMARY | Concentric Rockford Inc (USA) |
| Reference | Meaning |
|---|---|
| GT20-2V15S1-A21A-30 | 3/9 Design control — primary reference Calex Corp |
| GT20-2V15S1-A21A-30 | 5/9 Secondary reference Vickers Inc |
NSN 4320-01-373-3124 is a Pump,rotary, manufactured by Concentric Rockford Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-373-3124 has 1 manufacturer part number on file: GT20W-2V15S1-A21A-61 (Concentric Rockford Inc).
Key specifications for GT20W-2V15S1-A21A-61: Discharge Connection Quantity: 1; Intake Connection Type: THREADED INTERNAL; Pumping Element Operating Position: HORIZONTAL; Drive Shaft Length: 1.500 INCHES NOMINAL IN. 23 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.