|M25988/1-928||1-3/4 " Tube||$4.60|
M25988 O-Rings, these O-Rings are intended for packing and are oil & fuel resistant.
Good high and low temperature properties. Slightly narrow temperature range than Silicone rubber; but better resistance to a greater variety of petroleum fluids. Commonly used in Aircraft Fuel and Lube systems requiring resistance to diester base lubric.
The o-rings are what I expected—the test will be over time. They should be longer lived—mtb—less susceptible to weather checking. Installation was easier—less tendency to roll—fit produced a fuel tight seal and minimal drag/chafing during routine operation.
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