Wearing Ring

Model / MPN: C258A | NSN: 4320-00-077-0931

A cylindrical item with or without flang (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.

Product Details

NATO Stock Number

4320-00-077-0931

Sold in multiples of

1 EA

DEMIL

Body Style

Internal flange w/external locking flange

Overall Length

1.005 inches

Body Outside Diameter

5.250 inches

Body Inside Diameter

Between 4.480 inches and 4.500 inches

Corner Radius

0.078 inches inside right corner

Left Side Flange Thickness

Between 0.188 inches and 0.203 inches

Right Side Flange Thickness

Between 0.188 inches and 0.203 inches

Distance Between Flanges

0.625 inches

End To Flange Distance

Between 0.780 inches and 0.812 inches

Internal Flange Inside Diameter

3.625 inches

Internal Flange Width

Between 0.328 inches and 0.375 inches

Smallest External Anchor Flange Radius

Between 2.500 inches and 2.555 inches

Largest External Anchor Flange Radius

2.750 inches

Distance Below Centerline

0.125 inches

Distance From End

0.250 inches

Corner Shape

Round inside right corner

Corner Shape

Square inside left corner

Corner Shape

Square outside left corner

Corner Shape

Square outside right corner

Material

Copper alloy

258A Series Parts

Pricing and Availability

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Wearing Ring

Pricing and Availability

Certified Quality Assurance

C258A Cross Reference