The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-449-7510, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dockson Corporation. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-449-7510 |
| Primary Part Number | 134AAD |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dockson Corporation |
| Status | ACTIVE |
| Flow Control Device | DISK, DUAL, TOP GUIDED |
| Renewable Seat Ring Type | THREADED |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | TEE ANGLE |
| Regulation Type | MANUAL, DOUBLE STAGE |
| First End Style Designator | EXTERNAL SEAT FOR GASKET SEAL |
| End Connection Quantity | 2 |
| Manual Control Method | TEE HANDLE |
| Valve Loading Method | DOME |
| Mounting Facility | LUG |
| First End Connection Type | THREADED EXTERNAL PIPE |
| Material | COPPER ALLOY BODY |
| Outlet Pressure Accuracy Rating | ERR-060 |
| Media for Which Designed | ACETYLENE |
| Maximum Inlet Pressure Rating | ERR-060 |
| Second End Connection Type | UNTHREADED EXTERNAL TUBE |
| Outlet Pressure Setting | ERR-060 |
| Filter | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4820-00-449-7510 is a Valve,regulating,fluid Pressure, manufactured by Dockson Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-449-7510 has 2 manufacturer part numbers on file: 134AAD (Dockson Corporation), 134AD (Dockson Corporation).
Key specifications for 134AAD: Flow Control Device: DISK, DUAL, TOP GUIDED; Renewable Seat Ring Type: THREADED; Second End Relationship with First End: NOT IDENTICAL; Body Style: TEE ANGLE. 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.