Wearing Ring

Model / MPN: 255278-05 | NSN: 4320-00-218-3487

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

4320-00-218-3487

Sold in multiples of

1 EA

DEMIL

Body Style

Internal and external flange

Chamfer Length

0.125 inches inside right corner

Overall Length

1.125 inches

Bolt Circle Diameter

5.290 inches

Flange Diameter

5.845 inches

Body Outside Diameter

Between 4.624 inches and 4.625 inches

Body Inside Diameter

4.095 inches

Corner Radius

0.312 inches inside left corner

Left Side Flange Thickness

0.375 inches

Unthreaded Mounting Hole Diameter

0.281 inches

Bolt Hole Quantity

Internal Flange Inside Diameter

2.875 inches

Internal Flange Width

0.313 inches

Corner Shape

Chamfered inside right corner

Corner Shape

Round inside left corner

Corner Shape

Square outside left corner

Corner Shape

Square outside right corner

Chamfer Angle

45.0 degrees inside right corner

Material

Copper alloy

Material Specification

Mil-b-16261, gr 4 military specification single material response

255278 Series Parts

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

255278-05 Cross Reference

255278-5
789P
SL5278PC51
255278-05