The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-181-8936, 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 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-181-8936 |
| Primary Part Number | 30813076 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Warren Controls, Inc. |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 8 |
| Flow Control Device | DIAPHRAGM |
| Valve Stem Design | SINGLE SEAT |
| Renewable Seat Ring Type | THREADED |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 13.500 INCHES NOMINAL IN |
| Regulation Type | AUTOMATIC DOUBLE STAGE |
| First End Flange Thickness | 0.500 INCHES NOMINAL IN |
| First End Flange Outside Diameter | 7.688 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| Special Test Features | HIGH-IMPACT SHOCK TESTS ARE REQUIRED AS DIRECTED IN PARAGRAPHS 3.6 AND 4.4.2.3 OF MIL-V-2042 IN PAC TEST ABOVE IN |
| Temp Rating | 165.0 FAHRENHEIT NOMINAL DEGF |
| First End Bolt Hole Diameter | 0.563 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 6.563 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 25.0 TO 60.0 CAMERA MOUNT |
| Valve Loading Method | SPRING |
| Nondefinitive Spec/std Data | 2 TYPE |
| First End Connection Type | PLAIN FACE FLANGE |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| Test Data Document | 81349-MILV2042 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Media for Which Designed | WATER, FRESH AND WATER, SALT |
| 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 |
|---|---|
| 30813076 PRIMARY | Warren Controls, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 436-4IN | 5/9 Secondary reference Warren Controls, Inc. |
NSN 4820-00-181-8936 is a Valve,regulating,fluid Pressure, manufactured by Warren Controls, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-181-8936 has 1 manufacturer part number on file: 30813076 (Warren Controls, Inc.).
Key specifications for 30813076: First End Bolt Hole Quantity: 8; Flow Control Device: DIAPHRAGM; Valve Stem Design: SINGLE SEAT; Renewable Seat Ring Type: THREADED. 25 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.