Product Details | SAFETY RELIEF VALVE

4820-01-426-7846 A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.

Part Alternates: 3307929, 33079295, 3307929-5, 5159B2MP150, 5159B-2MP-150, 4820-01-426-7846, 01-426-7846, 4820014267846, 014267846

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 18 MAR 1996 01-426-7846

Drawings & Photos | NSN 4820-01-426-7846


Cross Reference | NSN 4820-01-426-7846

Part Number Cage Code Manufacturer
3307929 99251 CARLETON LIFE SUPPORT SYSTEMS INC. DBA COBHAM MISSION SYSTEM
3307929-5 99251 CARLETON LIFE SUPPORT SYSTEMS INC. DBA COBHAM MISSION SYSTEM
5159B-2MP-150 91816 CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS

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Technical Data | NSN 4820-01-426-7846

Characteristic Specifications
MATERIAL COPPER ALLOY OVERALL
STYLE DESIGNATOR C7 STRAIGHT THRU
MAXIMUM OPERATING PRESSURE 2400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 250.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE 1ST END THREADED INTERNAL PIPE 2ND END
CONNECTION STYLE G46B PLAIN 1ST END G9 PLAIN 2ND END
THREAD SERIES DESIGNATOR NPTF ALL ENDS
NOMINAL THREAD SIZE 0.250 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
OPENING PRESSURE SETTING 150.0 POUNDS PER SQUARE INCH
III END ITEM IDENTIFICATION AIRCRAFT, EAGLE F-15

Restrictions/Controls & Freight Information | NSN 4820-01-426-7846

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 127220 PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code AH Defense Supply Center Columbus
Columbus, OH 43215
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity
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 4820-01-426-7846

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
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