The Seat,valve, cataloged under National Stock Number 4820-01-532-2743, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-532-2743 |
| Primary Part Number | 9290-4 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 2.000 INCHES NOMINAL IN |
| Flange Diameter | 10.500 INCHES NOMINAL IN |
| Thread Length | 1.125 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Style Designator | THREADED FLANGED |
| Material Document and Classification | MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 8.000 INCHES NOMINAL IN |
| Nominal Thread Size | 1.182 INCHES SINGLE THREADED PORTION IN |
| Under Flange Height | 2.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY 922 OVERALL |
| Seat Angle in Deg | 45.000 NOMINAL |
| Thread Series Designator | NPT SINGLE THREADED PORTION |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| 9290-4 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 9290 PC. NO. 4 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-01-532-2743 is a Seat,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-532-2743 has 2 manufacturer part numbers on file: 9290-4 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 9290 PC. NO. 4 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for 9290-4: Flange Seat to Disk End Height: 2.000 INCHES NOMINAL IN; Flange Diameter: 10.500 INCHES NOMINAL IN; Thread Length: 1.125 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: THREADED FLANGED. 12 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.