The Pump Unit,reciprocating, cataloged under National Stock Number 4320-01-261-9747, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4320-01-261-9747 |
| Primary Part Number | 9921K64 |
| Item Name | Pump Unit,reciprocating |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Phase | SINGLE |
| Pumping Element Type | DIAPHRAGM |
| Intake Connection Type | UNTHREADED EXTERNAL |
| Frequency in Hertz | 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Current Type | AC |
| Pumping Element Operating Position | HORIZONTAL |
| Prime Mover Power Rating | 0.05 HORSEPOWER |
| Reciprocating Stroke Type | VARIABLE |
| Voltage in Volts | 115.0 |
| Cooling Method | BLOWER COOLED |
| Prime Mover Quantity | 1 |
| Pump Quantity | 1 |
| Pump Reciprocating Design | SINGLE ACTING |
| Prime Mover Cooling Medium | AIR |
| Discharge Pressure | 25.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES |
| Cylinder Quantity | 1 |
| Maximum Discharge Flow Rate | 0.02 GALLONS PER MINUTE |
| Discharge Connection Type | UNTHREADED EXTERNAL |
| Intake Connection Quantity | 1 |
| Prime Mover Type | ELECTRIC MOTOR |
| Media for Which Designed | SEWAGE AND WATER, FRESH |
| Mounting Type | BASE |
| Current Rating in Amps | 6.4 |
| 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 |
|---|---|
| 9921K64 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 9921K33 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
NSN 4320-01-261-9747 is a Pump Unit,reciprocating, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-261-9747 has 1 manufacturer part number on file: 9921K64 (Mcmaster-Carr Supply Co).
Key specifications for 9921K64: Discharge Connection Quantity: 1; Phase: SINGLE; Pumping Element Type: DIAPHRAGM; Intake Connection Type: UNTHREADED EXTERNAL. 25 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.