The Seat,valve, cataloged under National Stock Number 4820-01-656-4573, 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. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Seat,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (CAGE 15187); Emerson Automation Solutions Final Control Us Lp (CAGE 04613); Ja Moody Llc (CAGE 3B558) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-656-4573 |
| Primary Part Number | 304-206-160-640-000 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp |
| 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 |
|---|---|
| 304-206-160-640-000 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 304-206-160-640-000 PRIMARY | Emerson Automation Solutions Final Control Us Lp (USA) |
| 304-206-160-640-000 | Ja Moody Llc (USA) |
| Reference | Meaning |
|---|---|
| D640-16-359 ITEM 5 | C/1 Advisory reference — outside the item-of-supply concept Emerson Automation Solutions Final Control Us Lp |
NSN 4820-01-656-4573 is a Seat,valve, manufactured by Emerson Automation Solutions Final Control Us Lp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-656-4573 has 3 manufacturer part numbers on file: 304-206-160-640-000 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 304-206-160-640-000 (Emerson Automation Solutions Final Control Us Lp), 304-206-160-640-000 (Ja Moody Llc).
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.