NPFC - MIL-S-52506
SEALS, SHAFT, MECHANICAL, LOW-PRESSURE TYPE, SELF-LUBRICATING: FOR GENERAL-PURPOSE CENTRIFUGAL PUMPS
|Publication Date:||30 July 1992|
This specification covers four types and 16 sizes of low-pressure, self-lubricating, mechanical shaft seals, commonly used on centrifugal pumps.
The seals are intended to be used as a component of centrifugal pumps for sealing potable water and hydrocarbons including such liquids as gasoline, diesel fuel, and jet fuel.