The Valve,expansion, cataloged under National Stock Number 4820-01-692-8891, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Friends of Emerson Visual and Performing Arts School, Inc.. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-692-8891 |
| Primary Part Number | 800 620 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Friends of Emerson Visual and Performing Arts School, Inc. |
| Status | ACTIVE |
| Valve Equalizer Location | INTERNAL |
| Valve Expansion Control Type | PRESSURE |
| Valve Pressure Limiting Device | NOT INCLUDED |
| 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 |
|---|---|
| 800 620 PRIMARY | Friends of Emerson Visual and Performing Arts School, Inc. (USA) |
NSN 4820-01-692-8891 is a Valve,expansion, manufactured by Friends of Emerson Visual and Performing Arts School, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-692-8891 has 1 manufacturer part number on file: 800 620 (Friends of Emerson Visual and Performing Arts School, Inc.).
Key specifications for 800 620: Valve Equalizer Location: INTERNAL; Part Name Assigned by Controlling Agency: VALVE,EXPANSION; Valve Expansion Control Type: PRESSURE; Valve Pressure Limiting Device: NOT INCLUDED. 3 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.