Product Details | CHECK VALVE

4820-00-998-0471 A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part Alternates: 308077, 32-83521-35, 4820-00-998-0471, 00-998-0471, 4820009980471, 009980471, 328352135

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 16 NOV 1966 00-998-0471

Drawings & Photos | NSN 4820-00-998-0471


Cross Reference | NSN 4820-00-998-0471

Part Number Cage Code Manufacturer
308077 33654 HOWDEN FLUID SYSTEMS
308077 58163 MEGGITT (NORTH HOLLYWOOD), INC. DBA MEGGITT CONTROL SYSTEMS
32-83521-35 76301 BOEING COMPANY, THE DBA BOEING

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Technical Data | NSN 4820-00-998-0471

Characteristic Specifications
MATERIAL ALUMINUM ALLOY OVERALL
SURFACE TREATMENT OXIDE
STYLE DESIGNATOR A6 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MAXIMUM OPERATING TEMP 300.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL TUBE 1ST END THREADED EXTERNAL BOSS 2ND END
CONNECTION STYLE B42 FLARED 1ST END B50 EXTERNAL SEAT FOR GASKET SEAL 2ND END
SEAT ANGLE 37.0 DEGREES 1ST END
THREAD SERIES DESIGNATOR UNF 1ST END UNF 2ND END
NOMINAL THREAD SIZE 0.437 INCHES 1ST END 0.562 INCHES 2ND END
THREAD CLASS 3A 1ST END 3A 2ND END
THREAD DIRECTION RIGHT-HAND 1ST END RIGHT-HAND 2ND END
MOUNTING POSITION HORIZONTAL OR VERTICAL
DISK LOADING METHOD SPRING

Restrictions/Controls & Freight Information | NSN 4820-00-998-0471

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 051080 FAUCETS,BIBCOCKS,GATES VALVES
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 576 unknown
Originating Activity Code KE Naval ICP
Philadelphia, PA 19111
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 4820-00-998-0471

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