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: 318, 1 in Nominal Inside Dia., 1 3/8 in Nominal Outside Dia., 90 Shore A, Black, 10 PK O-Ring: 113, 9/16 in Nominal Inside Dia., 3/4 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 19 mm Nominal Inside Dia., 24 mm Nominal Outside Dia., 24 mm Actual Outside Dia., 100 PK O-Ring: 154, 3 3/4 in Nominal Inside Dia., 3 15/16 in Nominal Outside Dia., 80 Shore A, Black, 5 PK O-Ring: 245 mm Nominal Inside Dia., 255 mm Nominal Outside Dia., 255 mm Actual Outside Dia., Black O-Ring: 17 mm Nominal Inside Dia., 21 mm Nominal Outside Dia., 21 mm Actual Outside Dia., Std, 10 PK O-Ring: 53 mm Nominal Inside Dia., 58 mm Nominal Outside Dia., 58 mm Actual Outside Dia., Std, 2 PK Backup Ring, Contoured: Buna N, For 246, 0.05 in Thick, 0.174 in Radius, 25 PK O-Ring: 21 mm Nominal Inside Dia., 28 mm Nominal Outside Dia., 28 mm Actual Outside Dia., 75 Shore A O-Ring: 24.5 mm Nominal Inside Dia., 30.5 mm Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 914, 3/32 in Nominal Inside Dia., 7/32 in Nominal Outside Dia., 70 Shore A, Black, 70 PK O-Ring: 475, 26 in Nominal Inside Dia., 26 1/2 in Nominal Outside Dia., 26.49 in Actual Outside Dia. O-Ring: 7.3 mm Nominal Inside Dia., 12.1 mm Nominal Outside Dia., 12.1 mm Actual Outside Dia., 50 PK O-Ring: 52 mm Nominal Inside Dia., 62 mm Nominal Outside Dia., 62 mm Actual Outside Dia., 20 PK O-Ring: 125, 1 5/16 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 124, 1 1/4 in Nominal Inside Dia., 1 7/16 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 213, 15/16 in Nominal Inside Dia., 1 3/16 in Nominal Outside Dia., 70 Shore A, Red, 25 PK O-Ring: 149, 2 13/16 in Nominal Inside Dia., 3 in Nominal Outside Dia., 75 Shore A, Brown, 10 PK O-Ring: 85 mm Nominal Inside Dia., 93 mm Nominal Outside Dia., 93 mm Actual Outside Dia., Red, 2 PK O-Ring: 344, 3 7/8 in Nominal Inside Dia., 4 1/4 in Nominal Outside Dia., 70 Shore A, Black, 25 PK ◀◀ ◀ ▶ ▶▶
