The Valve,pressure Equalizing,gaseou, cataloged under National Stock Number 4820-01-084-7763, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-084-7763 |
| Primary Part Number | 798AS106-6 |
| Item Name | Valve,pressure Equalizing,gaseou |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Flow Control Device | DISK, FLAT |
| First End Thread Direction | RIGHT-HAND |
| Surface Treatment Document and Classification | MIL-A-8625, TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| Surface Treatment Document and Classification | MIL-A-8625, TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| Body Style | SINGLE CONNECTION, STRAIGHT FLOW |
| First End Style Designator | PLAIN |
| Material Document and Classification | QQ-A-225/6, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-A-250/4, ALLOY 2024, 0 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| End Connection Quantity | 1 |
| Valve Venting Design Type | ATMOSPHERIC |
| Opening Pressure Setting | ERR-060 |
| Disk Loading Method | SPRING |
| First End Connection Type | THREADED EXTERNAL PIPE |
| Surface Treatment | ANODIZE OUTSIDE |
| First End Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| Material | ALUMINUM ALLOY 2024 BODY |
| Material | ALUMINUM ALLOY 2024 AND RUBBER CHLOROPRENE CLASS CR SEAT |
| Media for Which Designed | AIR |
| Furnished Items | GASKET AND MANUAL OPERATING DEVICE AND 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 |
|---|---|
| 798AS106-6 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| TA333-30-30-R | Agm Container Controls Inc Dba Agm Container Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 798AS106 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4820-01-084-7763 is a Valve,pressure Equalizing,gaseou, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-084-7763 has 2 manufacturer part numbers on file: 798AS106-6 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), TA333-30-30-R (Agm Container Controls Inc Dba Agm Container Controls Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-267-5987, 4820-01-299-8745. Verify interchangeability with system specifications before substitution.
Key specifications for 798AS106-6: Flow Control Device: DISK, FLAT; First End Thread Direction: RIGHT-HAND; Surface Treatment Document and Classification: MIL-A-8625, TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE; Surface Treatment Document and Classification: MIL-A-8625, TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED. 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.