Product Details | SAFETY RELIEF VALVE

4820-00-484-0626 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: 10100142, 1AD3820, 1AD38-20, 4820-00-484-0626, 00-484-0626, 4820004840626, 004840626

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 21 MAY 1969 00-484-0626

Drawings & Photos | NSN 4820-00-484-0626


Demand History | NSN 4820-00-484-0626

Part Number Request Date QTY Origin
4820-00-484-0626 2015-03-84 105 DIBBS

Cross Reference | NSN 4820-00-484-0626

Part Number Cage Code Manufacturer
10100142 64599 RHEOMETRIC SCIENTIFIC INC
1AD38-20 06909 SEAMAN-PARSONS CORP

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Technical Data | NSN 4820-00-484-0626

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING OVERALL
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE 1ST END
FLANGE SHAPE OVAL WITH HOLES 1ST END
NOMINAL THICKNESS 0.370 INCHES 1ST END
NOMINAL LENGTH 3.125 INCHES 1ST END
NOMINAL WIDTH 2.190 INCHES 1ST END
BOLT HOLE QUANTITY 2 1ST END
BOLT HOLE NOMINAL DIAMETER 0.405 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER 2.390 INCHES 1ST END
FLANGE FACE DESIGN RAISED STRAIGHT 1ST END
RAISED FACE NOMINAL HEIGHT 0.093 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER 0.753 INCHES 1ST END
FURNISHED ITEMS AND QUANTITY 3 GASKET

Restrictions/Controls & Freight Information | NSN 4820-00-484-0626

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 4820-00-484-0626

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 CodesXSEMIACTIVE ITEM-NO REPLACEMENT (NON-STOCKED ITEMS) A potentially inactive NSN which must be retained in the supply system as an item of supply because (1) stocks of the item are on hand or in use below the wholesale level and (2) the NSN is cited in equipment authorization documents TO & E, TA, TM, etc., or in-use assets are being reported. 1. Items are authorized for central procurement but not authorized for stockage at wholesale level. 2. Requisitions for in-use replacement will be authorized in accordance with individual Military Service directives. 3. Requisitions may be submitted as requirements generate. Repetitive demands may dictate an AAC change to permit wholesale stockage.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each