Product Details | SAFETY RELIEF VALVE

4820-01-212-6795 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: F27812281, F278-1228-1, 524B6M25, 524B-6M-25, 62A116C198, 4820-01-212-6795, 01-212-6795, 4820012126795, 012126795

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 17 JUL 1985 01-212-6795

Demand History | NSN 4820-01-212-6795

Part Number Request Date QTY Origin
4820-01-212-6795 2010-03-80 1 DIBBS

Cross Reference | NSN 4820-01-212-6795

Part Number Cage Code Manufacturer
524B-6M-25 91816 CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS
62A116C198 30003 NAVAL AIR SYSTEMS COMMAND
F278-1228-1 04577 CARLETON TECHNOLOGIES INC

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Technical Data | NSN 4820-01-212-6795

Characteristic Specifications
MATERIAL COPPER ALLOY BODY
STYLE DESIGNATOR STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE
MAXIMUM OPERATING PRESSURE 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP -70.0 DEG FAHRENHEIT 1ST RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE ALL ENDS
CONNECTION STYLE PLAIN (PIPE) ALL ENDS
THREAD SERIES DESIGNATOR NPT ALL ENDS
NOMINAL THREAD SIZE 0.750 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
OPENING PRESSURE SETTING 25.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES POP-OFF TYPE

Restrictions/Controls & Freight Information | NSN 4820-01-212-6795

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 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 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 4820-01-212-6795

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