The Parts Kit,butterfly Valve, cataloged under National Stock Number 4820-01-250-1858, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lexair Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-250-1858 |
| Primary Part Number | 188-935-120-360-024 |
| Item Name | Parts Kit,butterfly Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Lexair Inc |
| Status | ACTIVE |
| Component Quantity | 24 |
| Nonsupply Items and Quantities | METAL SEAT 1;SPACER 1;SEAT BACKING WIRE 20;SEAT RETAINING RING GASKET 2 |
| 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 |
|---|---|
| 188-935-120-360-024 PRIMARY | Lexair Inc (USA) |
| Reference | Meaning |
|---|---|
| 188-935-120-360-024 | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp |
| 188-935-120-360-044 | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp |
NSN 4820-01-250-1858 is a Parts Kit,butterfly Valve, manufactured by Lexair Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-250-1858 has 1 manufacturer part number on file: 188-935-120-360-024 (Lexair Inc).
Key specifications for 188-935-120-360-024: Component Quantity: 24; Nonsupply Items and Quantities: METAL SEAT 1;SPACER 1;SEAT BACKING WIRE 20;SEAT RETAINING RING GASKET 2. 2 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.