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: 7 mm Nominal Inside Dia., 12 mm Nominal Outside Dia., 12 mm Actual Outside Dia., 50 PK O-Ring: 216, 1 1/8 in Nominal Inside Dia., 1 3/8 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 207, 9/16 in Nominal Inside Dia., 13/16 in Nominal Outside Dia., 70 Shore A, Red, 25 PK O-Ring: 32.5 mm Nominal Inside Dia., 37.5 mm Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 258, 6 in Nominal Inside Dia., 6 1/4 in Nominal Outside Dia., 75 Shore A, Brown, 2 PK O-Ring: 019, 13/16 in Nominal Inside Dia., 15/16 in Nominal Outside Dia., 50 Shore A, Black, 25 PK O-Ring: 112, 1/2 in Nominal Inside Dia., 11/16 in Nominal Outside Dia., 75 Shore A, Blue, 5 PK O-Ring: 53/64 in Nominal Inside Dia., 1.066 in Actual Outside Dia., 55 Shore D, White, 50 PK O-Ring: 020, 7/8 in Nominal Inside Dia., 1 in Nominal Outside Dia., 70 Shore A, Black, Inch, 25 PK O-Ring: 64 mm Nominal Inside Dia., 74 mm Nominal Outside Dia., 74 mm Actual Outside Dia., 75 Shore A O-Ring: 331, 2 1/4 in Nominal Inside Dia., 2 5/8 in Nominal Outside Dia., 90 Shore A O-Ring: 028, 1 3/8 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 61 mm Nominal Inside Dia., 64 mm Nominal Outside Dia., 64 mm Actual Outside Dia., 25 PK O-Ring: 68 mm Nominal Inside Dia., 72 mm Nominal Outside Dia., 72 mm Actual Outside Dia., Std, 25 PK O-Ring: 220, 1 3/8 in Nominal Inside Dia., 1 5/8 in Nominal Outside Dia., 80 Shore A, Black, 5 PK Backup Ring, Contoured: Buna N, For 254, 0.05 in Thick, 0.174 in Radius, 10 PK O-Ring: 82 mm Nominal Inside Dia., 90 mm Nominal Outside Dia., 90 mm Actual Outside Dia., 10 PK O-Ring: 89.4 mm Nominal Inside Dia., 95.6 mm Nominal Outside Dia., 95.6 mm Actual Outside Dia., 2 PK O-Ring: 107 mm Nominal Inside Dia., 111 mm Nominal Outside Dia., 111 mm Actual Outside Dia., 5 PK O-Ring: 133, 1 13/16 in Nominal Inside Dia., 2 in Nominal Outside Dia., 75 Shore A, Brown, 10 PK ◀◀ ◀ ▶ ▶▶
