The Valve,pressure Equalizing,gaseou, cataloged under National Stock Number 4820-01-220-5574, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Agm Container Controls Inc Dba Agm Container Controls Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-220-5574 |
| Primary Part Number | TA500-VR-20 |
| Item Name | Valve,pressure Equalizing,gaseou |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Agm Container Controls Inc Dba Agm Container Controls Inc |
| Status | ACTIVE |
| Flow Control Device | DISK, FLAT |
| Temp Rating | -80.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF |
| Surface Treatment Document and Classification | TT-P-636 FED SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| Surface Treatment Document and Classification | TT-P-636 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| Body Style | SINGLE CONNECTION, STRAIGHT FLOW |
| End Connection Quantity | 1 |
| Opening Pressure Setting | ERR-060 |
| Surface Treatment | CHROMATE OUTSIDE |
| Material | ALUMINUM ALLOY BODY |
| Furnished Items | GASKET AND NUT |
| 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 |
|---|---|
| TA500-VR-20 PRIMARY | Agm Container Controls Inc Dba Agm Container Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| TA500-VR-20 | 5/9 Secondary reference Arizona Gear and Mfg Co |
| 70979-001 | C/1 Advisory reference — outside the item-of-supply concept Eaton Corp Information Management Systems Div Microwave Components |
NSN 4820-01-220-5574 is a Valve,pressure Equalizing,gaseou, manufactured by Agm Container Controls Inc Dba Agm Container Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-220-5574 has 1 manufacturer part number on file: TA500-VR-20 (Agm Container Controls Inc Dba Agm Container Controls Inc).
Key specifications for TA500-VR-20: Flow Control Device: DISK, FLAT; Temp Rating: -80.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF; Surface Treatment Document and Classification: TT-P-636 FED SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED; Surface Treatment Document and Classification: TT-P-636 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE. 10 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.