Product Details | CHECK VALVE

4820-00-640-0031 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: 18999ALT5PCAT0CA3T0L3, 18999PCACA3L3, 18999PCACXA3L3, 28548011438807ALTBPC10, 285-4801-1438807ALTBPC10, 42348001439566ALTBPCV13, 423-4800-1439566ALTBPCV13, 42648001439480ALTPCV14, 426-4800-1439480ALTPCV14, 482468754ALT5PCAT0CAST0L3, 4824-68754ALT5PCAT0CAST0L3, 4820-00-640-0031, 00-640-0031, 4820006400031, 006400031

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-640-0031

Drawings & Photos | NSN 4820-00-640-0031


Cross Reference | NSN 4820-00-640-0031

Part Number Cage Code Manufacturer
18999ALT5PCAT0CA3T0L3 81316 PORTSMOUTH NAVAL SHIPYARD
18999PCACA3L3 81316 PORTSMOUTH NAVAL SHIPYARD
18999PCACXA3L3 81316 PORTSMOUTH NAVAL SHIPYARD
285-4801-1438807ALTBPC10 80064 NAVAL SHIP SYSTEMS COMMAND
423-4800-1439566ALTBPCV13 80064 NAVAL SHIP SYSTEMS COMMAND
426-4800-1439480ALTPCV14 80064 NAVAL SHIP SYSTEMS COMMAND
4824-68754ALT5PCAT0CAST0L3 80064 NAVAL SHIP SYSTEMS COMMAND

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Technical Data | NSN 4820-00-640-0031

Characteristic Specifications
MATERIAL COPPER ALLOY BODY COPPER ALLOY SEAT
STYLE DESIGNATOR A2A STRAIGHT THRU FLANGED ENDS
FACE TO FACE DISTANCE 6.250 INCHES
FLOW CONTROL DEVICE DISK
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE ALL ENDS
FLANGE SHAPE ROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER 4.500 INCHES ALL ENDS
BOLT HOLE QUANTITY 4 ALL ENDS
BOLT HOLE NOMINAL DIAMETER 0.562 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER 3.125 INCHES ALL ENDS
MOUNTING POSITION HORIZONTAL

Restrictions/Controls & Freight Information | NSN 4820-00-640-0031

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 XX
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 4820-00-640-0031

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