Mr O-Ring 109 Buna-N 70A Durometer, Black, 5/16" ID, 1/2" OD, 3/32" Width (Pack of 100)

109 Buna-N O-Ring, 70A Durometer, Black, 5/16" ID, 1/2" OD, 3/32" Width (Pack of 100)

111 Buna-N O-Ring, 70A Durometer, Black, 7/16" ID, 5/8" OD, 3/32" Width (Pack of 100)

010 Buna-N O-Ring, 90A Durometer, Round, Black, 1/4" ID, 3/8" OD, 1/16" Width (Pack of 100)