The Pump,rotary, cataloged under National Stock Number 4320-01-533-3281, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Pump,rotary |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | Pon Power B.v. (CAGE H0S39); Hastings Deering (aust) Pty Ltd (CAGE ZF912); Caterpillar Inc Div Caterpillar Defense (CAGE 11083) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-533-3281 |
| Primary Part Number | 440-6388 |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| 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 |
|---|---|
| 20R-0030 | Pon Power B.v. (NLD) |
| 193-9234 | Hastings Deering (aust) Pty Ltd (AUS) |
| 440-6388 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 524-3160 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 10176265 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 340-7732 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
| 193-9234 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
| 276-5906 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 4320-01-533-3281 is a Pump,rotary, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-533-3281 has 4 manufacturer part numbers on file: 20R-0030 (Pon Power B.v.), 193-9234 (Hastings Deering (aust) Pty Ltd), 440-6388 (Caterpillar Inc Div Caterpillar Defense), 524-3160 (Caterpillar Inc Div Caterpillar Defense).
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.