Product Details | CHECK VALVE

4820-01-270-4924 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: 2640255, 2640-255, 8452007678, 845-2007678, 4820-01-270-4924, 01-270-4924, 4820012704924, 012704924

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 07 JAN 1988 01-270-4924

Drawings & Photos | NSN 4820-01-270-4924


Cross Reference | NSN 4820-01-270-4924

Part Number Cage Code Manufacturer
2640-255 96169 ELECTRIC BOAT CORPORATION
845-2007678 80064 NAVAL SHIP SYSTEMS COMMAND

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Technical Data | NSN 4820-01-270-4924

Characteristic Specifications
MATERIAL NICKEL ALLOY BODY NICKEL ALLOY FLOW CONTROL DEVICE
STYLE DESIGNATOR A2A STRAIGHT THRU FLANGED ENDS
VALVE SIZE 1.500 INCHES
FACE TO FACE DISTANCE 8.750 INCHES
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING PRESSURE 650.0 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 5.062 INCHES ALL ENDS
NOMINAL THICKNESS 0.812 INCHES ALL ENDS
BOLT HOLE QUANTITY 6 ALL ENDS
BOLT HOLE NOMINAL DIAMETER 0.562 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER 3.937 INCHES ALL ENDS
FLANGE FACE DESIGN PLAIN ALL ENDS
MOUNTING POSITION HORIZONTAL

Restrictions/Controls & Freight Information | NSN 4820-01-270-4924

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 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 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 4820-01-270-4924

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