Catalog Hardware O-Rings and O-Ring Kits O-rings and O-ring kits help ensure a tight seal to prevent air and fluid leaks in applications such as air conditioner repair or plumbing installations. ◀◀ ◀ ▶ ▶▶ O-Ring: 83 mm Nominal Inside Dia., 88 mm Nominal Outside Dia., 88 mm Actual Outside Dia., 5 PK O-Ring: 039, 2 3/4 in Nominal Inside Dia., 2 7/8 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 355, 5 1/4 in Nominal Inside Dia., 5 5/8 in Nominal Outside Dia., 90 Shore A, Black, 2 PK O-Ring: 189.3 mm Nominal Inside Dia., 200.7 mm Nominal Outside Dia., 70 Shore A, Black, 2 PK O-Ring: 7 mm Nominal Inside Dia., 11 mm Nominal Outside Dia., 11 mm Actual Outside Dia., 25 PK O-Ring: 24 mm Nominal Inside Dia., 27 mm Nominal Outside Dia., 27 mm Actual Outside Dia., Std, 10 PK O-Ring: 34 mm Nominal Inside Dia., 37 mm Nominal Outside Dia., 37 mm Actual Outside Dia., 100 PK O-Ring: 27 mm Nominal Inside Dia., 37 mm Nominal Outside Dia., 37 mm Actual Outside Dia., 25 PK O-Ring: 215, 1 1/16 in Nominal Inside Dia., 1 5/16 in Nominal Outside Dia., 90 Shore A, Black, 25 PK O-Ring: 13.5 mm Nominal Inside Dia., 18.5 mm Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 235, 3 1/8 in Nominal Inside Dia., 3 3/8 in Nominal Outside Dia., 90 Shore A, Black, 10 PK O-Ring: 54 mm Nominal Inside Dia., 60 mm Nominal Outside Dia., 60 mm Actual Outside Dia., 25 PK O-Ring: 29.3 mm Nominal Inside Dia., 36.5 mm Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 118, 7/8 in Nominal Inside Dia., 1 1/16 in Nominal Outside Dia., 75 Shore A, Black, 10 PK O-Ring: 7.1 mm Nominal Inside Dia., 10.3 mm Nominal Outside Dia., 70 Shore A, Black, Metric, 100 PK O-Ring: 108, 1/4 in Nominal Inside Dia., 7/16 in Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 011, 5/16 in Nominal Inside Dia., 7/16 in Nominal Outside Dia., 75 Shore A, Black, X, 50 PK O-Ring: 322, 1 1/4 in Nominal Inside Dia., 1 5/8 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 16.9 mm Nominal Inside Dia., 22.3 mm Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 326, 1 5/8 in Nominal Inside Dia., 2 in Nominal Outside Dia., 2.02 in Actual Outside Dia. ◀◀ ◀ ▶ ▶▶
