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: 10 mm Nominal Inside Dia., 14 mm Nominal Outside Dia., 14 mm Actual Outside Dia., 50 PK O-Ring: 160 mm Nominal Inside Dia., 168 mm Nominal Outside Dia., 168 mm Actual Outside Dia., 5 PK O-Ring: 211, 13/16 in Nominal Inside Dia., 1 1/16 in Nominal Outside Dia., 70 Shore A, White, 25 PK O-Ring: 025, 1 3/16 in Nominal Inside Dia., 1 5/16 in Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 47 mm Nominal Inside Dia., 52 mm Nominal Outside Dia., 52 mm Actual Outside Dia., Std, 50 PK O-Ring: 005, 3/32 in Nominal Inside Dia., 7/32 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 242, 4 in Nominal Inside Dia., 4 1/4 in Nominal Outside Dia., 55 Shore D, White, 2 PK O-Ring: 272, 9 1/2 in Nominal Inside Dia., 9 3/4 in Nominal Outside Dia., 70 Shore A, Red, 5 PK O-Ring: 119, 15/16 in Nominal Inside Dia., 1 1/8 in Nominal Outside Dia., 90 Shore A O-Ring: 11 mm Nominal Inside Dia., 13 mm Nominal Outside Dia., 13 mm Actual Outside Dia., 100 PK O-Ring: 024, 1 1/8 in Nominal Inside Dia., 1 1/4 in Nominal Outside Dia., 90 Shore A, Black, 10 PK O-Ring: 8 mm Nominal Inside Dia., 12.8 mm Nominal Outside Dia., 12.8 mm Actual Outside Dia., 25 PK O-Ring: 219, 1 5/16 in Nominal Inside Dia., 1 9/16 in Nominal Outside Dia., 75 Shore A, Brown, 10 PK O-Ring: 19 mm Nominal Inside Dia., 23 mm Nominal Outside Dia., 23 mm Actual Outside Dia., 100 PK O-Ring: 007, 5/32 in Nominal Inside Dia., 9/32 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 007, 5/32 in Nominal Inside Dia., 9/32 in Nominal Outside Dia., 55 Shore D, White, 50 PK O-Ring: 210, 3/4 in Nominal Inside Dia., 1 in Nominal Outside Dia., 80 Shore A, Black, 5 PK O-Ring: 326, 1 5/8 in Nominal Inside Dia., 2 in Nominal Outside Dia., 70 Shore A, Black, Inch, 25 PK O-Ring: 133, 1 13/16 in Nominal Inside Dia., 2 in Nominal Outside Dia., 70 Shore A, Red, Inch, 10 PK O-Ring: 14 mm Nominal Inside Dia., 18 mm Nominal Outside Dia., 18 mm Actual Outside Dia., Red, 50 PK ◀◀ ◀ ▶ ▶▶