The Piston,pump, cataloged under National Stock Number 4320-01-183-9433, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-183-9433 |
| Primary Part Number | 830275 |
| Item Name | Piston,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Integral Connecting Rod | NOT INCLUDED |
| Diameter | 1.766 INCHES NOMINAL IN |
| Oil Groove | INCLUDED |
| Head Style | RELIEVED |
| Material | COPPER 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 |
|---|---|
| 830275 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 830701 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| Reference | Meaning |
|---|---|
| 830275 | 3/9 Design control — primary reference U.S. Government activity |
| 830701 | 5/9 Secondary reference U.S. Government activity |
NSN 4320-01-183-9433 is a Piston,pump, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-183-9433 has 2 manufacturer part numbers on file: 830275 (Eaton Aerospace, Llc Dba Jackson South), 830701 (Eaton Aerospace, Llc Dba Jackson South).
2 possible matches (shared part number, not a government interchangeability claim): 6750-01-427-6606, 5110-01-541-1202. Verify interchangeability with system specifications before substitution.
Key specifications for 830275: Integral Connecting Rod: NOT INCLUDED; Diameter: 1.766 INCHES NOMINAL IN; Oil Groove: INCLUDED; Head Style: RELIEVED. 5 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.