Product Details | SAFETY RELIEF VALVE

4820-00-146-6042 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: 09975A01S0005, 9975A, 4820-00-146-6042, 00-146-6042, 4820001466042, 001466042

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 12 SEP 1971 00-146-6042

Drawings & Photos | NSN 4820-00-146-6042


Cross Reference | NSN 4820-00-146-6042

Part Number Cage Code Manufacturer
09975A01S0005 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
09975A01S0005 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
9975A 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY

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Technical Data | NSN 4820-00-146-6042

Characteristic Specifications
MATERIAL COPPER ALLOY 922 BODY NICKEL ALLOY FLOW CONTROL DEVICE NICKEL ALLOY SEAT NICKEL ALLOY STEM
MATERIAL DOCUMENT AND CLASSIFICATION QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
STYLE DESIGNATOR A1 STRAIGHT THRU
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED GAS, NATURAL SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 750.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 180.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE UNTHREADED INTERNAL TUBE ALL ENDS
CONNECTION STYLE G30A SOCKET WITH BRAZING RING ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 1.000 INCHES ALL ENDS
RENEWABLE SEAT RING TYPE RETAINING SCREW
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD BOLTED
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 5.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE 5.0 TO 9.0 POUNDS PER SQUARE INCH
FURNISHED ITEMS AND QUANTITY 2 BRAZING RING AND 2 TAILPIECE

Restrictions/Controls & Freight Information | NSN 4820-00-146-6042

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:UPrecious metal type is unknown
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 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 4820-00-146-6042

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 CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each