O-ring
Cessna (210-5A (205A) s/n 205-0481 thru 205-0577, TP206A s/n P206-0191 thru P206-0306, TP206B s/n P206-0307 thru P206-0419, TP206C s/n P206-0420 thru P206-0519, TP206D s/n P206-0520 thru P206-0603, TP206E s/n P20600604 thru P20600647 and P206-0001, TU206A s/n U206-0487 thru U206-0656, TU206B s/n U206-0657 thru U206-0914, TU206C s/n U206-0915 thru U206-1234, TU206D s/n U206-1235 thru U206-1444, TU206E s/n U20601445 thru U20601700, TU206F (1972-1973) s/n U20601701 thru U20602199, TU206F (1974-1976) s/n U20602200 thru U20603521 except U20602589, TU206G s/n U20603522 thru U20607020 and 676, U20602589, U206 s/n U206-0276 thru U206-0437, U206A s/n U206-0438 thru U206-0656, U206B s/n U206-0657 thru U206-0914, U206C s/n U206-0915 thru U206-1234, U206D s/n U206-1235 thru U206-1444, U206E s/n U20601445 thru U20601700, U206F (1972-1973) s/n U20601701 thru U20602199, U206F (1974-1976) s/n U20602200 thru U20603521 except U20602589, U206G s/n U20603522 thru U20607020 and 676, U20602589, 207 s/n 20700001 thru 20700362, 207A s/n 20700363 thru 20700788, T207 s/n 20700001 thru 20700362, T207A s/n 20700363 thru 20700788, 210N (1981-1984) s/n 21064136 thru 21064535, T210J s/n T210-0393 thru T210-0454 and 21058140)