The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-540-0344, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Grove Valve Operations. Government technical data includes 23 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-540-0344 |
| Primary Part Number | 11479BD052A |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Grove Valve Operations |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 4 |
| Valve Stem Design | SINGLE SEAT |
| Second End Relationship with First End | IDENTICAL |
| Remote Actuation Method | DIAPHRAGM |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 8.500 INCHES NOMINAL IN |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Flange Outside Diameter | 4.625 INCHES NOMINAL IN |
| First End Style Designator | RAISED |
| Temp Rating | 875.0 FAHRENHEIT NOMINAL DEGF |
| First End Bolt Hole Diameter | 0.688 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 3.250 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 25.0 TO 550.0 CAMERA MOUNT |
| Valve Loading Method | DOME |
| First End Connection Type | RAISED FACE FLANGE |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| Material | COBALT ALLOY SEAT |
| Material | COBALT ALLOY FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING STEM |
| Media for Which Designed | STEAM |
| Maximum Inlet Pressure Rating | 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 |
| Part Number | Manufacturer |
|---|---|
| 11479BD052A | Grove Valve Operations (USA) |
| Reference | Meaning |
|---|---|
| MIL-V-17848 | 4/1 Identification reference U.S. Government activity |
| NAP781 | 3/9 Design control — primary reference Atlas Valve Co |
NSN 4820-00-540-0344 is a Valve,regulating,fluid Pressure, manufactured by Grove Valve Operations, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-540-0344 has 1 manufacturer part number on file: 11479BD052A (Grove Valve Operations).
Key specifications for 11479BD052A: First End Bolt Hole Quantity: 4; Valve Stem Design: SINGLE SEAT; Second End Relationship with First End: IDENTICAL; Remote Actuation Method: DIAPHRAGM. 23 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.