The Valve,pressure Equalizing,gaseou, cataloged under National Stock Number 4820-01-220-7680, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Stratotech Llc. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-220-7680 |
| Primary Part Number | 622RG |
| Item Name | Valve,pressure Equalizing,gaseou |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Stratotech Llc |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| First End Thread Series Designator | UNF |
| First End Thread Direction | RIGHT-HAND |
| Temp Rating | 160.0 FAHRENHEIT DEGF |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| Body Style | SINGLE CONNECTION STRAIGHT THRU |
| First End Thread Class | 3A A |
| First End Style Designator | EXTERNAL SEAT FOR GASKET SEAL |
| End Connection Quantity | 1 |
| Operating Pressure | 3.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Valve Venting Design Type | ATMOSPHERIC |
| Opening Pressure Setting | ERR-060 |
| Disk Loading Method | SPRING |
| First End Connection Type | THREADED EXTERNAL BOSS |
| Surface Treatment | ANODIZE OUTSIDE |
| Material | ALUMINUM BODY |
| Furnished Items | GASKET AND NUT |
| Valve Relief Design Type | PRESSURE |
| First End Nominal Thread Size | 0.750 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4820-01-220-7680 is a Valve,pressure Equalizing,gaseou, manufactured by Stratotech Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-220-7680 has 2 manufacturer part numbers on file: 622RG (Stratotech Llc), 1035A0011 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for 622RG: Flow Control Device: POPPET; First End Thread Series Designator: UNF; First End Thread Direction: RIGHT-HAND; Temp Rating: 160.0 FAHRENHEIT DEGF. 20 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.