The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-752-9438, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Warren Controls, Inc.. Government technical data includes 30 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-752-9438 |
| Primary Part Number | 30814022 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Warren Controls, Inc. |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 10 |
| Flow Control Device | DISK, BOTTOM GUIDED |
| Valve Stem Design | SINGLE SEAT |
| Renewable Seat Ring Type | PRESSED-IN |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 15.000 INCHES NOMINAL IN |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Flange Thickness | 1.062 INCHES NOMINAL IN |
| First End Flange Outside Diameter | 9.062 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| Second End Bolt Hole Quantity | 10 |
| First End Bolt Hole Diameter | 0.688 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 7.812 INCHES NOMINAL IN |
| Material Document and Classification | MIL-B-16541,GRADE A MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| Material Document and Classification | MIL-N-894 MIL SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | MIL-N-894 MIL SPEC SINGLE MATERIAL RESPONSE STEM |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 25.0 TO 60.0 CAMERA MOUNT |
| Second End Flange Thickness | 0.562 INCHES NOMINAL IN |
| Valve Loading Method | SPRING |
| Second End Bolt Circle Diameter | 7.812 INCHES NOMINAL IN |
| Second End Style Designator | PLAIN |
| Second End Flange Shape Style | ROUND W/ BOLT HOLES |
| First End Connection Type | PLAIN FACE FLANGE |
| Second End Flange Outside Diameter | 9.062 INCHES NOMINAL IN |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| Material | NICKEL ALLOY AND COPPER ALLOY SEAT |
| Material | RUBBER SYNTHETIC FLOW CONTROL DEVICE |
| Material | NICKEL ALLOY AND COPPER ALLOY STEM |
| 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 |
|---|---|
| 30814022 | Warren Controls, Inc. (USA) |
| Reference | Meaning |
|---|---|
| AA35954 | 3/9 Design control — primary reference Hammel Dahl Inc |
| MIL-V-2042 | 4/1 Identification reference U.S. Government activity |
NSN 4820-00-752-9438 is a Valve,regulating,fluid Pressure, manufactured by Warren Controls, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-752-9438 has 1 manufacturer part number on file: 30814022 (Warren Controls, Inc.).
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-386-6588, 4310-01-386-8275, 4730-01-386-8313. Verify interchangeability with system specifications before substitution.
Key specifications for 30814022: First End Bolt Hole Quantity: 10; Flow Control Device: DISK, BOTTOM GUIDED; Valve Stem Design: SINGLE SEAT; Renewable Seat Ring Type: PRESSED-IN. 30 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.