The Retainer,seat,valve, cataloged under National Stock Number 4820-01-469-0394, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Eaton Aerospace Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-469-0394 |
| Primary Part Number | 190000 PIECE 7 .25IPS |
| Item Name | Retainer,seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Eaton Aerospace Llc |
| Status | ACTIVE |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 0.250 INCHES IN |
| Valve Design Control Activity | 16780 |
| Material | NICKEL 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 |
|---|---|
| 90P804-M | Eaton Aerospace Llc (USA) |
| 190000 PIECE 7 .25IPS PRIMARY | Eaton Aerospace Llc (USA) |
| Reference | Meaning |
|---|---|
| 190000 | D/9 Drawing number reference only Eaton Corporation Dba Eaton Inoac Div Eaton |
| 90P804-M | C/1 Advisory reference — outside the item-of-supply concept Eaton Corporation Dba Eaton Inoac Div Eaton |
NSN 4820-01-469-0394 is a Retainer,seat,valve, manufactured by Eaton Aerospace Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-469-0394 has 2 manufacturer part numbers on file: 90P804-M (Eaton Aerospace Llc), 190000 PIECE 7 .25IPS (Eaton Aerospace Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-522-1263. Verify interchangeability with system specifications before substitution.
Key specifications for 190000 PIECE 7 .25IPS: Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE; Valve Size for Which Designed: 0.250 INCHES IN; Valve Design Control Activity: 16780; End Item Identification: LOS ANGELES CLASS SSN (688). 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.