Product Details | WEARING RING

4320-00-542-2121 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: C166A, R502REVA1PC18, R503REVA1PC18, R504REVAPC24, 3297334REVA1PC18, 5865161720811REVAPC24, 586-516-1720811REVAPC24, 4320-00-542-2121, 00-542-2121, 4320005422121, 005422121

Pumps and Compressors | Power and Hand Pumps

Supply Group (FSG) NSN Assign. NIIN
43 01 JAN 1963 00-542-2121

Drawings & Photos | NSN 4320-00-542-2121


Demand History | NSN 4320-00-542-2121

Part Number Request Date QTY Origin
4320-00-542-2121 2009-03-82 25 DIBBS

Cross Reference | NSN 4320-00-542-2121

Part Number Cage Code Manufacturer
3297334REVA1PC18 53711 NAVAL SEA SYSTEMS COMMAND
586-516-1720811REVAPC24 53711 NAVAL SEA SYSTEMS COMMAND
C166A 63857 WARREN PUMPS LLC
R502REVA1PC18 63857 WARREN PUMPS LLC
R503REVA1PC18 63857 WARREN PUMPS LLC
R504REVAPC24 63857 WARREN PUMPS LLC

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Technical Data | NSN 4320-00-542-2121

Characteristic Specifications
MATERIAL COPPER ALLOY
BODY STYLE 1 PLAIN
OVERALL LENGTH 0.875 INCHES NOMINAL
BODY OUTSIDE DIAMETER 8.753 INCHES MINIMUM AND 8.754 INCHES MAXIMUM
BODY INSIDE DIAMETER 8.112 INCHES MINIMUM AND 8.114 INCHES MAXIMUM
CORNER SHAPE SQUARE INSIDE LEFT CORNER SQUARE INSIDE RIGHT CORNER SQUARE OUTSIDE LEFT CORNER CHAMFERED OUTSIDE RIGHT CORNER
CHAMFER ANGLE 45.0 DEGREES NOMINAL OUTSIDE RIGHT CORNER
CHAMFER LENGTH 0.062 INCHES NOMINAL OUTSIDE RIGHT CORNER
SURFACE FINISH 125.0 MICROINCHES ALL SURFACES

Restrictions/Controls & Freight Information | NSN 4320-00-542-2121

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 4320-00-542-2121

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