Product Details | CHECK VALVE

4820-01-074-0297 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: SS8452181251, SS845-2181251, SS8452181251ASSYRE6IN, SS845-2181251ASSYRE6IN, 2181251ASSYRE6IN, 2620927X9ASSYRE6IN, 2620-927X9ASSYRE6IN, 4820-01-074-0297, 01-074-0297, 4820010740297, 010740297

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 24 MAR 1979 01-074-0297

Drawings & Photos | NSN 4820-01-074-0297


Cross Reference | NSN 4820-01-074-0297

Part Number Cage Code Manufacturer
2181251ASSYRE6IN 53711 NAVAL SEA SYSTEMS COMMAND
2620-927X9ASSYRE6IN 11836 NATIONAL OILWELL
2620-927X9ASSYRE6IN 96169 ELECTRIC BOAT CORPORATION
SS845-2181251 53711 NAVAL SEA SYSTEMS COMMAND
SS845-2181251ASSYRE6IN 53711 NAVAL SEA SYSTEMS COMMAND

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Technical Data | NSN 4820-01-074-0297

Characteristic Specifications
MATERIAL COPPER ALLOY BODY RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND ALUMINUM ALLOY FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION MIL-B-21230 MIL SPEC SINGLE MATERIAL RESPONSE BODY MIL-P-5516,CLASS B MIL SPEC 1ST MATERIAL RESPONSE AND MIL-B-24480 MIL SPEC 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE
STYLE DESIGNATOR A2A STRAIGHT THRU FLANGED ENDS
VALVE SIZE 6.000 INCHES
FACE TO FACE DISTANCE 18.000 INCHES
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED WATER-OIL-GAS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 700.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE ALL ENDS
FLANGE SHAPE ROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER 10.375 INCHES ALL ENDS
NOMINAL THICKNESS 1.938 INCHES ALL ENDS
BOLT HOLE QUANTITY 14 ALL ENDS
BOLT HOLE NOMINAL DIAMETER 0.688 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER 9.375 INCHES ALL ENDS
FLANGE FACE DESIGN PLAIN ALL ENDS
MOUNTING POSITION HORIZONTAL

Restrictions/Controls & Freight Information | NSN 4820-01-074-0297

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 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 4820-01-074-0297

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