The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-526-9261, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-526-9261 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | AUTOMATIC DOUBLE STAGE |
| First End Thread Class | 3B |
| First End Style Designator | FLARE |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 8.0 TO 150.0 CAMERA MOUNT |
| Second End Thread Direction | RIGHT-HAND |
| Valve Loading Method | SPRING |
| Second End Style Designator | SWIVEL NUT, FLARED |
| Nondefinitive Spec/std Data | 2 TYPE AND B2HF-W CLASS |
| First End Connection Type | THREADED INTERNAL TUBE |
| Material | COPPER ALLOY OR STEEL CORROSION RESISTING BODY |
| Media for Which Designed | HELIUM |
| Maximum Inlet Pressure Rating | ERR-060 |
| Second End Connection Type | THREADED EXTERNAL GAS CYLINDER |
| Furnished Items | AUTOMATIC RELIEF VALVE AND CYLINDER GAGE AND FLOWMETER |
| Thread Size and Series/type Designator | 5/8-18 UNF FIRST END |
| Outlet Pressure Setting | ERR-060 |
| Filter | INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| HVTS2337 | C/1 Advisory reference — outside the item-of-supply concept Victor Equipment Co |
| MIL-R-19180 | 4/1 Identification reference U.S. Government activity |
NSN 4820-00-526-9261 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 4820-00-551-0757, 4820-00-551-0758, 6680-00-844-4510. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-00-526-9261: Flow Control Device: DIAPHRAGM; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: NOT IDENTICAL; Body Style: STRAIGHT THRU. 22 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.