The Seat,valve, cataloged under National Stock Number 4820-01-343-3283, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Eaton Corporation Dba Eaton Inoac Div Eaton. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-343-3283 |
| Primary Part Number | 190000 PART 90P9CK-04 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Eaton Corporation Dba Eaton Inoac Div Eaton |
| Status | ACTIVE |
| Material Document and Classification | MIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material | RUBBER SEAT |
| 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 |
|---|---|
| 190000 PART 90P9CK-04 PRIMARY | Eaton Corporation Dba Eaton Inoac Div Eaton (USA) |
| 90P9CK-04 | Eaton Corporation Dba Eaton Inoac Div Eaton (USA) |
| Reference | Meaning |
|---|---|
| 190000 | D/9 Drawing number reference only Eaton Corporation Dba Eaton Inoac Div Eaton |
NSN 4820-01-343-3283 is a Seat,valve, manufactured by Eaton Corporation Dba Eaton Inoac Div Eaton, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-343-3283 has 2 manufacturer part numbers on file: 190000 PART 90P9CK-04 (Eaton Corporation Dba Eaton Inoac Div Eaton), 90P9CK-04 (Eaton Corporation Dba Eaton Inoac Div Eaton).
Key specifications for 190000 PART 90P9CK-04: Material Document and Classification: MIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE SEAT; End Item Identification: EG AND G SEALOL CO CHECK VALVE MODEL NO. 190000,SIZE 0.250 IN. IN; Material: RUBBER SEAT. 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.