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: 95 mm Nominal Inside Dia., 100 mm Nominal Outside Dia., 100 mm Actual Outside Dia., 5 PK O-Ring: 28 mm Nominal Inside Dia., 33 mm Nominal Outside Dia., 33 mm Actual Outside Dia., 10 PK O-Ring: 7.1 mm Nominal Inside Dia., 10.3 mm Nominal Outside Dia., 10.3 mm Actual Outside Dia., 5 PK Backup Ring, Contoured: Buna N, For 128, 0.053 in Thick, 0.129 in Radius, 100 PK O-Ring: 244, 4 1/4 in Nominal Inside Dia., 4 1/2 in Nominal Outside Dia., 80 Shore A, Black, 2 PK O-Ring: 49.2 mm Nominal Inside Dia., 60.6 mm Nominal Outside Dia., 60.6 mm Actual Outside Dia. O-Ring: 22 mm Nominal Inside Dia., 28 mm Nominal Outside Dia., 28 mm Actual Outside Dia., Std, 10 PK O-Ring: 5.6 mm Nominal Inside Dia., 10.4 mm Nominal Outside Dia., 10.4 mm Actual Outside Dia., 25 PK O-Ring Installation Tool O-Ring: 2.6 mm Nominal Inside Dia., 6.4 mm Nominal Outside Dia., 6.4 mm Actual Outside Dia., 50 PK Backup Ring, Contoured: Buna N, For 330, 0.076 in Thick, 0.262 in Radius, 50 PK O-Ring: 37.6 mm Nominal Inside Dia., 42.4 mm Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 174, 8 3/4 in Nominal Inside Dia., 8 15/16 in Nominal Outside Dia., 90 Shore A, Black, 2 PK O-Ring: 18 mm Nominal Inside Dia., 24 mm Nominal Outside Dia., 24 mm Actual Outside Dia., 25 PK O-Ring: 012, 3/8 in Nominal Inside Dia., 1/2 in Nominal Outside Dia., 70 Shore A, Black, Inch, 25 PK O-Ring: 5 mm Nominal Inside Dia., 7 mm Nominal Outside Dia., 7 mm Actual Outside Dia., Black, 50 PK O-Ring: 333, 2 1/2 in Nominal Inside Dia., 2 7/8 in Nominal Outside Dia., 75 Shore A, Brown, 5 PK O-Ring: 232, 2 3/4 in Nominal Inside Dia., 3 in Nominal Outside Dia., 3.012 in Actual Outside Dia. O-Ring: 76 mm Nominal Inside Dia., 86 mm Nominal Outside Dia., 86 mm Actual Outside Dia., 5 PK O-Ring: 12.8 mm Nominal Inside Dia., 17.6 mm Nominal Outside Dia., 70 Shore A, Black, 100 PK ◀◀ ◀ ▶ ▶▶
