Product Details | CHECK VALVE

4820-01-104-7404 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: NS-3983 ASSY AF, NS-3983 ASSY AFC1, NS3983ASSYAF, NS3983ASSYAFC1, 4820-01-104-7404, 01-104-7404, 4820011047404, 011047404

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 10 DEC 1980 01-104-7404

Drawings & Photos | NSN 4820-01-104-7404


Cross Reference | NSN 4820-01-104-7404

Part Number Cage Code Manufacturer
NS-3983 ASSY AF 11836 NATIONAL OILWELL
NS-3983 ASSY AF 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
NS-3983 ASSY AFC1 03950 NAVAL INVENTORY CONTROL POINT MECHANICSBURG

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Technical Data | NSN 4820-01-104-7404

Characteristic Specifications
STYLE DESIGNATOR A2 STRAIGHT THRU
MEDIA FOR WHICH DESIGNED WATER-OIL-GAS SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE UNTHREADED INTERNAL TUBE 1ST END
CONNECTION STYLE B20B SOCKET 1ST END
NOMINAL PIPE SIZE ACCOMMODATED 2.000 INCHES 1ST END
MOUNTING POSITION HORIZONTAL
RENEWABLE SEAT RING TYPE PRESSED-IN
NONDEFINITIVE SPEC/STD DATA 1 TYPE AND 1 CLASS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FORLEVEL 1,CLEANED IN ACCORDANCE WITH M IL-P-52211
MANUFACTURERS CODE 15187
DESIGN CONTROL REFERENCE NS-3983 ASSY AF

Restrictions/Controls & Freight Information | NSN 4820-01-104-7404

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:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:SThe item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel.
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 HD Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
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 4820-01-104-7404

Category Code Description
Cognizance Codes3HNAVICP MECH managed Field Level Repairables
Naval Inventory Control Point, Mechanicsburg
Special Material IDC1An item that requires special and packaging for oxygen/nitrogen service (e.g., valves, piping systems, generators) which also must meet the requirements of level 1.
Special Material Content9 Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
Source of SupplyNRPNAVICP-ERP
700 Robbins Avenue
Philadelphia, PA 19111-5098
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