Product Details | SYSTEM PRESSURE REGULATING VALVE

4820-01-306-3129 A value designed to automatically maintain within close limits a predetermined pressure within a closed system regardless of the higher fluctuating or constant inlet pressure. The excess pressure is by-passed to the accumulator or reservoir in lieu of passing through the entire system. It is designed primarily for use in refrigeration and air conditioning systems. Excludes VALVE, REGULATING, FLUID PRESSURE and VALVE, CALIBRATED FLOW.

Part Alternates: 40399902, 40399-902, 4820-01-306-3129, 01-306-3129, 4820013063129, 013063129

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 22 AUG 1989 01-306-3129

Drawings & Photos | NSN 4820-01-306-3129


Demand History | NSN 4820-01-306-3129

Part Number Request Date QTY Origin
40399-902 2023-02-27 3 DIBBS
40399-902 2023-02-16 3 DIBBS
40399-902 2021-03-28 1 DIBBS
40399-902 2021-02-15 1 DIBBS
40399-902 2020-12-29 1 DIBBS
4820-01-306-3129 2017-08-29 1 DIBBS
4820-01-306-3129 2016-03-01 1 DIBBS
4820-01-306-3129 2012-07-11 1 DIBBS
4820-01-306-3129 2012-03-08 2 DIBBS
4820-01-306-3129 2011-07-26 1 DIBBS
4820-01-306-3129 2011-07-03 1 DIBBS
4820-01-306-3129 2011-06-27 1 DIBBS
4820-01-306-3129 2011-06-23 1 DIBBS

Cross Reference | NSN 4820-01-306-3129

Part Number Cage Code Manufacturer
40399-902 55378 TRAC REGULATORS INC

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Technical Data | NSN 4820-01-306-3129

Characteristic Specifications
BODY MATERIAL BRONZE
SEAT MATERIAL NICKEL COPPER ALLOY
STEM MATERIAL NICKEL COPPER ALLOY
FLOW CONTROL DEVICE DISK
FLOW CONTROL DEVICE MATERIAL RUBBER
END CONNECTION QUANTITY 2
FIRST END CONNECTION TYPE UNTHREADED INTERNAL PIPE
FIRST END STYLE DESIGNATOR C1 SOCKET
FIRST END NOMINAL PIPE SIZE ACCOMMODATED 1.000 INCHES
SECOND END RELATIONSHIP WITH FIRST END IDENTICAL
BODY STYLE A1 STRAIGHT THRU
MEDIA FOR WHICH DESIGNED WATER, FRESH OR WATER, SALT
REGULATION TYPE 1ST STAGE MANUAL, 2ND STAGE AUTOMATIC
MANUAL CONTROL METHOD SCREW
VALVE LOADING METHOD SPRING
REMOTE ACTUATION METHOD DIAPHRAGM
TEMP RATING 165.0 DEG FAHRENHEIT NOMINAL
MAXIMUM INLET PRESSURE RATING 150.0 POUNDS PER SQUARE INCH
OUTLET PRESSURE RANGE 5.0 TO 30.0 POUNDS PER SQUARE INCH
OUTLET PRESSURE ACCURACY RATING NOT RATED
FILTER NOT INCLUDED

Restrictions/Controls & Freight Information | NSN 4820-01-306-3129

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.
Category Code Description
NMF Description 127200 PRESSURE REDCNG WATER RELIEF VALVE
Less than car load rating
Less than truck load rating M 85.0
Water commodity Code 594 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
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 4820-01-306-3129

Category Code Description
Cognizance Codes3BNavy-owned stocks of field level repairable DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
ReparabilityDField Level Reparables
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each