The Valve,butterfly, cataloged under National Stock Number 4820-01-428-9753, 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 8 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-428-9753 |
| Primary Part Number | 088-703-025-AR1-000 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp |
| Status | ACTIVE |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Valve Size | 2.500 INCHES IN |
| Material | IRON BODY |
| Material | STEEL COMP 316 STEM |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT |
| Material | COPPER ALLOY 630 FLOW CONTROL DEVICE |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 088-703-025-AR1-000 PRIMARY | Emerson Automation Solutions Final Control Us Lp (USA) |
| Reference | Meaning |
|---|---|
| DAR1-2/5-088 | D/9 Drawing number reference only Emerson Automation Solutions Final Control Us Lp |
NSN 4820-01-428-9753 is a Valve,butterfly, manufactured by Emerson Automation Solutions Final Control Us Lp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-428-9753 has 1 manufacturer part number on file: 088-703-025-AR1-000 (Emerson Automation Solutions Final Control Us Lp).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-428-9756, 4820-01-431-1266, 4820-01-431-1267. Verify interchangeability with system specifications before substitution.
Key specifications for 088-703-025-AR1-000: Connection Type: FLANGE ALL ENDS; Style Designator: STRAIGHT THRU; Valve Size: 2.500 INCHES IN; End Item Identification: BUTTERFLY VALVE,KEYSTONE VALVE USA,INC,MODEL AR1/TRIM 088. 8 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.