Product Details | SAFETY RELIEF VALVE

4820-00-775-8842 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: NAP709 PIECE 1 T, NAP709PC1T0553, NAP709PC1T055-3, NAP709PIECE1T, 4820-00-775-8842, 00-775-8842, 4820007758842, 007758842

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1962 00-775-8842

Drawings & Photos | NSN 4820-00-775-8842


Cross Reference | NSN 4820-00-775-8842

Part Number Cage Code Manufacturer
NAP709 PIECE 1 T 70667 ATLAS VALVE CO
NAP709PC1T055-3 70667 ATLAS VALVE CO

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Technical Data | NSN 4820-00-775-8842

Characteristic Specifications
MATERIAL STEEL UNS J03008 BODY STEEL FLOW CONTROL DEVICE PLASTIC PACKING STEEL COMP 202 AND STEEL COMP 302 AND STEEL COMP 303 SEAT
STYLE DESIGNATOR A7A ANGLE FLANGED ENDS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE 6.000 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE 6.000 INCHES
VALVE SIZE 4.000 INCHES
FLOW CONTROL DEVICE DISK
VALVE OPERATION METHOD MANUAL
CONNECTION TYPE FLANGE 1ST END
FLANGE SHAPE ROUND 1ST END
NOMINAL OUTSIDE DIAMETER 7.187 INCHES 1ST END
NOMINAL THICKNESS 0.625 INCHES 1ST END
FLANGE FACE DESIGN RAISED STRAIGHT 1ST END
RAISED FACE NOMINAL HEIGHT 0.625 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER 5.375 INCHES 1ST END
BONNET TYPE INSIDE SCREW
BONNET ATTACHMENT METHOD BOLTED
DISK LOADING METHOD WEIGHT
MOUNTING FACILITY BRACKET
MANUFACTURERS CODE 70667
DESIGN CONTROL REFERENCE NAP709 PIECE 1 T

Restrictions/Controls & Freight Information | NSN 4820-00-775-8842

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 XX
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 4820-00-775-8842

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