The Valve,pressure Equalizing,gaseou, cataloged under National Stock Number 4820-01-321-3211, 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 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-321-3211 |
| Primary Part Number | TA333-1419 |
| 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, CIRCULAR |
| First End Thread Series Designator | NPSM |
| First End Thread Direction | RIGHT-HAND |
| 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 FLOW |
| First End Style Designator | PLAIN |
| Material Document and Classification | QQ-A-225/3, ALLOY 2011 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| End Connection Quantity | 1 |
| Operating Pressure | 1.4 POUNDS PER SQUARE INCH (PSI) MAXIMUM AND 1.9 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Valve Venting Design Type | ATMOSPHERIC |
| First End Connection Type | THREADED INTERNAL PIPE |
| Surface Treatment | ANODIZE OUTSIDE |
| First End Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| Material | ALUMINUM ALLOY 2011 OR ALUMINUM ALLOY 2024 BODY |
| Media for Which Designed | AIR |
| Furnished Items | GASKET AND NUT AND WASHER |
| Valve Relief Design Type | PRESSURE AND VACUUM |
| 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 |
| Part Number | Manufacturer |
|---|---|
| TA333-1419 PRIMARY | Agm Container Controls Inc Dba Agm Container Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| TA333-14-19-R | 5/9 Secondary reference Agm Container Controls Inc Dba Agm Container Controls Inc |
| 12564757 | D/9 Drawing number reference only Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 4820-01-321-3211 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 4820-01-321-3211 has 1 manufacturer part number on file: TA333-1419 (Agm Container Controls Inc Dba Agm Container Controls Inc).
Key specifications for TA333-1419: Flow Control Device: DISK, CIRCULAR; First End Thread Series Designator: NPSM; First End Thread Direction: RIGHT-HAND; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED. 19 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.