The Seat,valve, cataloged under National Stock Number 4820-01-355-9041, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ami Industries, Inc Div Utc Aerospace Systems. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Seat,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Ami Industries, Inc Div Utc Aerospace Systems (CAGE 31218) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-355-9041 |
| Primary Part Number | 1171-38 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ami Industries, Inc Div Utc Aerospace Systems |
| 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 |
|---|---|
| 1171-38 PRIMARY | Ami Industries, Inc Div Utc Aerospace Systems (USA) |
| Reference | Meaning |
|---|---|
| 1171-38 | 3/9 Design control — primary reference Universal Propulsion Company Inc Dba Goodrich Div Universal Propulsion Co., Inc. |
NSN 4820-01-355-9041 is a Seat,valve, manufactured by Ami Industries, Inc Div Utc Aerospace Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-355-9041 has 1 manufacturer part number on file: 1171-38 (Ami Industries, Inc Div Utc Aerospace Systems).
1 possible match (shared part number, not a government interchangeability claim): 7690-01-701-9338. Verify interchangeability with system specifications before substitution.
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.