The Seat,valve, cataloged under National Stock Number 4820-00-509-9307, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-509-9307 |
| Primary Part Number | 122978 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| FSC Application Data | PUMP,AXIAL PISTONS |
| Style Designator | PLAIN |
| Body Inside Diameter | 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 122978 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 4820-00-509-9307 is a Seat,valve, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-509-9307 has 1 manufacturer part number on file: 122978 (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for 122978: Overall Height: 0.149 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN; FSC Application Data: PUMP,AXIAL PISTONS; Style Designator: PLAIN; Body Inside Diameter: 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN. 4 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.