Product Details | FLUID PRESSURE REGULATING VALVE

4820-01-425-7849 A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes REGULATOR, PRESSURE, MEDICAL GAS ADMINISTRATION APPARATUS; REGULATOR, OXYGEN, BAROMETRIC CONTINUOUS FLOW; REGULATOR, OXYGEN DEMAND; REGULATOR, OXYGEN DILUTER DEMAND; and valve(1), fluid pressure regulating, aircraft.20248100015Valves, Powered48200018Valves, Nonpowered

Part Alternates: MDFPMX31503W, MDFPMX-3150-3W, 4820-01-425-7849, 01-425-7849, 4820014257849, 014257849

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 28 FEB 1996 01-425-7849

Drawings & Photos | NSN 4820-01-425-7849


Cross Reference | NSN 4820-01-425-7849

Part Number Cage Code Manufacturer
MDFPMX-3150-3W 21013 METREX VALVE CORP.

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Technical Data | NSN 4820-01-425-7849

Characteristic Specifications
BODY MATERIAL BRONZE
SEAT MATERIAL BRONZE
STEM MATERIAL NICKEL COPPER ALLOY, QQ-N-281
FLOW CONTROL DEVICE DISK
END CONNECTION QUANTITY 3
FIRST END CONNECTION TYPE PLAIN FACE FLANGE
FIRST END STYLE DESIGNATOR G1 PLAIN
FIRST END FLANGE SHAPE STYLE 3 ROUND
FIRST END FLANGE OUTSIDE DIAMETER 11.000 INCHES NOMINAL
FIRST END FLANGE THICKNESS 0.812 INCHES MINIMUM
FIRST END BOLT CIRCLE DIAMETER 9.500 INCHES NOMINAL
SECOND END RELATIONSHIP WITH FIRST END IDENTICAL
THIRD END RELATIONSHIP WITH PRECEDING ENDS NOT IDENTICAL WITH FIRST OR SECOND END
THIRD END CONNECTION TYPE PLAIN FACE FLANGE
THIRD END STYLE DESIGNATOR G1 PLAIN
THIRD END FLANGE SHAPE STYLE 3 ROUND
THIRD END FLANGE OUTSIDE DIAMETER 11.000 INCHES NOMINAL
THIRD END FLANGE THICKNESS 0.812 INCHES MINIMUM
THIRD END BOLT CIRCLE DIAMETER 9.500 INCHES NOMINAL
BODY STYLE A2 TEE
FACE TO FACE DISTANCE 20.000 INCHES NOMINAL
MEDIA FOR WHICH DESIGNED WATER, SALT
VALVE LOADING METHOD SPRING
REMOTE ACTUATION METHOD BELLOWS
OUTLET PRESSURE SETTING 146.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-425-7849

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 127220 PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating P 77.5
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code HD Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4820-01-425-7849

Category Code Description
Cognizance Codes7HDepot level reparable shipboard and base equipment, assemblies, components and repair parts related to Naval Sea Systems Command equipment
Naval Inventory Control Point, Mechanicsburg
Special Material IDM1MSC unique components
Special Material Content9 Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
Source of SupplyNRPNAVICP-ERP
700 Robbins Avenue
Philadelphia, PA 19111-5098
AgencyDNDepartment of the Navy
Service OrganizationLLead Service - 22 (Repairable)
ReparabilityHDepot Level Reparable
Acquisition Advice CodesCSERVICE/AGENCY-MANAGED (Service/Agency use only.) # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by individual Services supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative