Scott, bad memory...we had to do a redesign on those wear collars as the first design epoxy came un done and rings shifted
Pilots did not like that so much. New design is bullet proof....no really ..... we have gotten some back from the field with bullet holes right through them and they kept on running. God Bless America (were on the f14,15,16,18, 22,117, T1, SR71, U2, B1,B2, JSF, V22. AH64, Blkhawk, CH53K, H1, well pretty much anything badaxed that flies.