The Piston, cataloged under National Stock Number 4320-01-219-4670, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-219-4670 |
| Primary Part Number | B-43991 |
| Item Name | Piston |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| 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 |
|---|---|
| B-43991 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 821999 PIECE 6 | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 4320-01-219-4670 is a Piston, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-219-4670 has 2 manufacturer part numbers on file: B-43991 (Eaton Aerospace, Llc Dba Jackson South), 821999 PIECE 6 (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for B-43991: End Item Identification: PUMP PARTS,SHIP PROVISIONING. 0 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.