The Piston,pump, cataloged under National Stock Number 4320-01-021-8723, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Tactair Fluid Controls Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-01-021-8723 |
| Primary Part Number | HP437202-3 |
| Item Name | Piston,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| Diameter | 3.100 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| HP437202-3 PRIMARY | Tactair Fluid Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| HP437202-1 | 5/9 Secondary reference U.S. Government activity |
| 82176-2135 | 5/9 Secondary reference U.S. Government activity |
| HP437202-3 | 5/9 Secondary reference U.S. Government activity |
| HP437202-3 | 5/9 Secondary reference Tactair Fluid Controls Inc Phoenix Controls Div |
NSN 4320-01-021-8723 is a Piston,pump, manufactured by Tactair Fluid Controls Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-021-8723 has 1 manufacturer part number on file: HP437202-3 (Tactair Fluid Controls Inc).
Key specifications for HP437202-3: Diameter: 3.100 INCHES NOMINAL IN; Material: ALUMINUM ALLOY. 2 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.