The Seat,valve, cataloged under National Stock Number 4820-01-428-6893, 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. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-428-6893 |
| Primary Part Number | 470-206-030-999-003 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp |
| Status | ACTIVE |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 2.562 INCHES NOMINAL IN |
| Material | RUBBER BUNA N OVERALL |
| Seating Surface Shape | O-RING |
| 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 |
|---|---|
| 470-206-030-999-003 PRIMARY | Emerson Automation Solutions Final Control Us Lp (USA) |
| DAR1-3-088 ITEM 4 | Emerson Automation Solutions Final Control Us Lp (USA) |
| Reference | Meaning |
|---|---|
| DAR1-3-088 | D/9 Drawing number reference only Emerson Automation Solutions Final Control Us Lp |
NSN 4820-01-428-6893 is a Seat,valve, manufactured by Emerson Automation Solutions Final Control Us Lp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-428-6893 has 2 manufacturer part numbers on file: 470-206-030-999-003 (Emerson Automation Solutions Final Control Us Lp), DAR1-3-088 ITEM 4 (Emerson Automation Solutions Final Control Us Lp).
Key specifications for 470-206-030-999-003: Style Designator: PLAIN FLANGED; Body Inside Diameter: 2.562 INCHES NOMINAL IN; End Item Identification: BUTTERFLY VALVE,KEYSTONE VALVE USA INC,MODEL AR1/TRIM 088; Material: RUBBER BUNA N OVERALL. 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.