The Pump,reciprocating, cataloged under National Stock Number 4320-01-446-3233, 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 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-01-446-3233 |
| Primary Part Number | 9912K28 |
| Item Name | Pump,reciprocating |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Pumping Element Type | PISTON |
| Intake Connection Type | UNTHREADED EXTERNAL |
| Reciprocating Stroke Type | VARIABLE |
| Pump Reciprocating Design | SINGLE ACTING |
| Departure From Cited Document | AS MODIFIED, NOT FOR GASOLINE |
| Cylinder Quantity | 1 |
| Discharge Connection Type | UNTHREADED EXTERNAL |
| Intake Connection Quantity | 1 |
| Operation Method | MANUAL |
| 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 |
|---|---|
| 9912K28 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 9974K11 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
| 600-335650 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
NSN 4320-01-446-3233 is a Pump,reciprocating, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-446-3233 has 1 manufacturer part number on file: 9912K28 (Mcmaster-Carr Supply Co).
Key specifications for 9912K28: Discharge Connection Quantity: 1; Pumping Element Type: PISTON; Intake Connection Type: UNTHREADED EXTERNAL; Reciprocating Stroke Type: VARIABLE. 10 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.