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: 7.6 mm Nominal Inside Dia., 12.4 mm Nominal Outside Dia., 12.4 mm Actual Outside Dia., 25 PK O-Ring: 011, 5/16 in Nominal Inside Dia., 7/16 in Nominal Outside Dia., 70 Shore A, Black, 25 PK Backup Ring, Contoured: Buna N, For 024, 0.049 in Thick, 0.087 in Radius, 100 PK O-Ring: 020, 7/8 in Nominal Inside Dia., 1 in Nominal Outside Dia., 70 Shore A, Black, Inch, 10 PK O-Ring: 41.5 mm Nominal Inside Dia., 47.5 mm Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 7.3 mm Nominal Inside Dia., 12.1 mm Nominal Outside Dia., 12.1 mm Actual Outside Dia., 50 PK O-Ring: 9 mm Nominal Inside Dia., 12 mm Nominal Outside Dia., 12 mm Actual Outside Dia., Std, 25 PK O-Ring: 194.3 mm Nominal Inside Dia., 205.7 mm Nominal Outside Dia., 70 Shore A, Black, 2 PK O-Ring: 232, 2 3/4 in Nominal Inside Dia., 3 in Nominal Outside Dia., 70 Shore A, Blue, 5 PK O-Ring: 359, 5 3/4 in Nominal Inside Dia., 6 1/8 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 125 mm Nominal Inside Dia., 135 mm Nominal Outside Dia., 135 mm Actual Outside Dia., 2 PK O-Ring: 133, 1 13/16 in Nominal Inside Dia., 2 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 362, 6 1/4 in Nominal Inside Dia., 6 5/8 in Nominal Outside Dia., 90 Shore A, Black, 2 PK O-Ring: 009, 7/32 in Nominal Inside Dia., 11/32 in Nominal Outside Dia., 75 Shore A, Brown, 100 PK O-Ring: 335, 2 3/4 in Nominal Inside Dia., 3 1/8 in Nominal Outside Dia., 85 Shore A O-Ring: 108, 1/4 in Nominal Inside Dia., 7/16 in Nominal Outside Dia., 70 Shore A, Black, 10,000 PK O-Ring: 325, 1 1/2 in Nominal Inside Dia., 1 7/8 in Nominal Outside Dia., 90 Shore A O-Ring: 394, 25 in Nominal Inside Dia., 25 3/8 in Nominal Outside Dia., 25.36 in Actual Outside Dia. O-Ring: 256, 5 3/4 in Nominal Inside Dia., 6 in Nominal Outside Dia., 75 Shore A, Brown, 2 PK O-Ring: 222, 1 1/2 in Nominal Inside Dia., 1 3/4 in Nominal Outside Dia., 85 Shore A ◀◀ ◀ ▶ ▶▶
