The Valve,check, cataloged under National Stock Number 4820-01-612-5798, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Envirovac Inc Dba Monogram Systems-Rockford Div. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Valve,check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Envirovac Inc Dba Monogram Systems-Rockford Div (CAGE 58568) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-612-5798 |
| Primary Part Number | 3500324-005 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Envirovac Inc Dba Monogram Systems-Rockford Div |
| 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 |
|---|---|
| 3500324-005 PRIMARY | Envirovac Inc Dba Monogram Systems-Rockford Div (USA) |
| 3900048 REV E ITEM NO 12 | Envirovac Inc Dba Monogram Systems-Rockford Div (USA) |
NSN 4820-01-612-5798 is a Valve,check, manufactured by Envirovac Inc Dba Monogram Systems-Rockford Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-612-5798 has 2 manufacturer part numbers on file: 3500324-005 (Envirovac Inc Dba Monogram Systems-Rockford Div), 3900048 REV E ITEM NO 12 (Envirovac Inc Dba Monogram Systems-Rockford Div).
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.