The Valve,pressure Equalizing,gaseou, cataloged under National Stock Number 4820-00-974-9643, 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 18 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-974-9643 |
| Primary Part Number | TA300-10018965 |
| 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 | POPPET |
| First End Thread Direction | RIGHT-HAND |
| 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 |
| First End Style Designator | EXTERNAL SEAT FOR GASKET SEAL |
| Material Document and Classification | QQ-A-225/6, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| End Connection Quantity | 1 |
| Valve Venting Design Type | ATMOSPHERIC |
| Opening Pressure Setting | ERR-060 |
| Disk Loading Method | SPRING |
| First End Connection Type | THREADED EXTERNAL BOSS |
| Surface Treatment | ANODIZE AND CHROMATE OUTSIDE |
| Material | ALUMINUM ALLOY 2024 BODY |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Media for Which Designed | AIR |
| Furnished Items | NUT AND WASHER |
| Valve Relief Design Type | PRESSURE AND VACUUM |
| 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 |
|---|---|
| TA300-10018965 PRIMARY | Agm Container Controls Inc Dba Agm Container Controls Inc (USA) |
| 10018965 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 8771556-1 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| 433-1960 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| TA300-10-10R | 5/9 Secondary reference Agm Container Controls Inc Dba Agm Container Controls Inc |
| 10018965 | 5/9 Secondary reference Hi Tech Machining & Engineering Llc |
NSN 4820-00-974-9643 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 4820-00-974-9643 has 2 manufacturer part numbers on file: TA300-10018965 (Agm Container Controls Inc Dba Agm Container Controls Inc), 10018965 (Us Army Aviation and Missile Command).
Key specifications for TA300-10018965: Flow Control Device: POPPET; First End Thread Direction: RIGHT-HAND; 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. 18 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.