Product Details | CHECK VALVE

4820-01-195-8422 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: 639110, 7957A1, 4820-01-195-8422, 01-195-8422, 4820011958422, 011958422

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 04 DEC 1984 01-195-8422

Drawings & Photos | NSN 4820-01-195-8422


Cross Reference | NSN 4820-01-195-8422

Part Number Cage Code Manufacturer
639110 36346 UNION CARBIDE CORP SUB OF DOW CO THE
7957A1 39428 MCMASTER-CARR SUPPLY COMPANY

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Technical Data | NSN 4820-01-195-8422

Characteristic Specifications
MATERIAL COPPER ALLOY BODY
STYLE DESIGNATOR A6 STRAIGHT THRU
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED OXYGEN, GASEOUS SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL HOSE 1ST END THREADED INTERNAL TUBE 2ND END
CONNECTION STYLE B46C PLAIN 1ST END B5A FLARE 2ND END
THREAD SERIES DESIGNATOR NH 1ST END UNF 2ND END
NOMINAL THREAD SIZE 0.562 INCHES ALL ENDS
THREAD QUANTITY PER INCH 11-1/2 1ST END
THREAD CLASS 3B 2ND END
THREAD DIRECTION RIGHT-HAND ALL ENDS
MOUNTING POSITION HORIZONTAL OR VERTICAL

Restrictions/Controls & Freight Information | NSN 4820-01-195-8422

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 051080 NICKEL OR NICKEL COPPER
Less than car load rating
Less than truck load rating J 100.2
Water commodity Code 576 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 4820-01-195-8422

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