Product Details | WEARING RING

4320-00-521-9740 A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.20229350055Engine System Cooling Components, Aircraft Prime Moving43200020Power and Hand Pumps

Part Alternates: MAI5219740, CA6238PC23, 4320-00-521-9740, 00-521-9740, 4320005219740, 005219740

Pumps and Compressors | Power and Hand Pumps

Supply Group (FSG) NSN Assign. NIIN
43 01 JAN 1963 00-521-9740

Drawings & Photos | NSN 4320-00-521-9740


Cross Reference | NSN 4320-00-521-9740

Part Number Cage Code Manufacturer
CA6238PC23 83130 BUFFALO PUMPS, INC. DIV BUFFALO PUMPS DIV
MAI5219740 55084 ARGUS MFG CORP

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Technical Data | NSN 4320-00-521-9740

Characteristic Specifications
MATERIAL COPPER ALLOY
BODY STYLE 17 EXTERNAL FLANGE
OVERALL LENGTH 0.875 INCHES NOMINAL
FLANGE DIAMETER 7.250 INCHES NOMINAL
BODY OUTSIDE DIAMETER 4.000 INCHES NOMINAL
BODY INSIDE DIAMETER 3.391 INCHES NOMINAL
LEFT SIDE FLANGE THICKNESS 0.625 INCHES NOMINAL
CORNER SHAPE SQUARE ALL CORNERS
SURFACE FINISH 32.0 MICROINCHES ALL SURFACES
SPECIAL FEATURES FLANGE END COUNTERBORED 6.250 IN. DIA BY 0.250 IN. DEEP

Restrictions/Controls & Freight Information | NSN 4320-00-521-9740

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 128000 PUMPS PWR NOI/WORKING HEADS/PARTS
Less than car load rating
Less than truck load rating M 85.0
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 4320-00-521-9740

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