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Wearing Ring

Model / MPN: 540414000 | NSN: 4320-01-506-8326
ITAR Registered seal

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 diff user ring in the suction and discharge throats of valves.

Product Details
NATO Stock Number
Sold in multiples of
1 EA
Body Style
Internal flange
Chamfer Length
0.090 inches outside right corner and 0.150 inches outside right corner
Overall Length
Between 1.350 inches and 1.410 inches
Body Outside Diameter
Between 6.753 inches and 6.754 inches
Body Inside Diameter
Between 6.270 inches and 6.272 inches
Corner Radius
0.220 inches inside right corner and 0.280 inches inside right corner
End Application
End To Flange Distance
0.940 inches
Internal Flange Inside Diameter
Between 5.470 inches and 5.530 inches
Internal Flange Outside Diameter
Between 5.590 inches and 5.650 inches
Internal Flange Width
Between 0.410 inches and 0.470 inches
Internal Flange Lip Width
0.250 inches
Corner Shape
Chambered outside right corner
Corner Shape
Round inside right corner
Corner Shape
Square inside left corner
Corner Shape
Square outside left corner
Surface Finish
125.0 microinches inside
Surface Finish
125.0 microinches left face
Surface Finish
125.0 microinches right face
Chamfer Angle
14.0 degrees outside right corner and 16.0 degrees outside right corner
Copper alloy 836
Material Specification
Astm B584 assn standard single material response or sae J461 assn standard single material response

Pricing and Availability

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540414000 Cross Reference
  • 93016K4105