The Pump Unit,centrifugal, cataloged under National Stock Number 4320-01-421-0046, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Coffin Turbo Pump Inc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-421-0046 |
| Primary Part Number | 11846/47/48 CG |
| Item Name | Pump Unit,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Coffin Turbo Pump Inc |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | ROUND FLANGE |
| Pumping Element Operating Position | HORIZONTAL |
| Centrifugal Pump Impeller Quantity | 1 |
| Prime Mover Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Pump Quantity | 1 |
| Operating Pressure | 650.0 POUNDS PER SQUARE INCH GAUGE (PSIG) NOMINAL POWER DRIVE LBS |
| Stage Quantity | 1 |
| Discharge Pressure | 18.0 LIGHT COMMERCIAL HEATING AND COOLING - ENERGY STAR-HEATING AND COOLING - ENERGY EFFICIENT PRODUCTS |
| Maximum Discharge Flow Rate | 550.0 GALLONS PER MINUTE |
| Discharge Connection Type | ROUND FLANGE |
| Intake Connection Quantity | 1 |
| Prime Mover Type | STEAM TURBINE |
| Media for Which Designed | WATER, FRESH |
| Mounting Type | BASE |
| Centrifugal Pump Design | MIXED FLOW |
| Total Head | 1890.000 FEET FT |
| Exhaust Pressure | 818.0 POUNDS PER SQUARE INCH GAGE LBS |
| 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 |
|---|---|
| 11846/47/48 CG PRIMARY | Coffin Turbo Pump Inc (USA) |
| Reference | Meaning |
|---|---|
| 11846/47/48 CG | 5/9 Secondary reference Fmc Corp Turbo Pump Operation |
| SKE-957 | D/9 Drawing number reference only Coffin Turbo Pump Inc |
| SKC-987 | D/9 Drawing number reference only Coffin Turbo Pump Inc |
| SK-1304,SK-925 | 5/1 Secondary reference Coffin Turbo Pump Inc |
NSN 4320-01-421-0046 is a Pump Unit,centrifugal, manufactured by Coffin Turbo Pump Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-421-0046 has 1 manufacturer part number on file: 11846/47/48 CG (Coffin Turbo Pump Inc).
Key specifications for 11846/47/48 CG: Discharge Connection Quantity: 1; Intake Connection Type: ROUND FLANGE; Pumping Element Operating Position: HORIZONTAL; Centrifugal Pump Impeller Quantity: 1. 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.