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: 96 mm Nominal Inside Dia., 101 mm Nominal Outside Dia., 101 mm Actual Outside Dia., 5 PK O-Ring: 254, 5 1/2 in Nominal Inside Dia., 5 3/4 in Nominal Outside Dia., 80 Shore A, Black, 2 PK O-Ring: 40 mm Nominal Inside Dia., 49 mm Nominal Outside Dia., 49 mm Actual Outside Dia., 10 PK O-Ring: 016, 5/8 in Nominal Inside Dia., 3/4 in Nominal Outside Dia., 50 Shore A, Black, 25 PK O-Ring: 028, 1 3/8 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 55 Shore D, White, 10 PK O-Ring: 122, 1 1/8 in Nominal Inside Dia., 1 5/16 in Nominal Outside Dia., 70 Shore A, White, 25 PK O-Ring: 108, 1/4 in Nominal Inside Dia., 7/16 in Nominal Outside Dia., 70 Shore A, Blue, Inch, 10 PK O-Ring: 12 mm Nominal Inside Dia., 17 mm Nominal Outside Dia., 17 mm Actual Outside Dia., 50 PK Backup Ring, Contoured: Buna N, For 042, 0.049 in Thick, 0.087 in Radius, 50 PK O-Ring: 413, 3 in Nominal Inside Dia., 3 1/2 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 114, 5/8 in Nominal Inside Dia., 13/16 in Nominal Outside Dia., 75 Shore A, Black, 5,000 PK Backup Ring, Contoured: Buna N, For 350, 0.076 in Thick, 0.262 in Radius, 10 PK O-Ring: 2.5 mm Nominal Inside Dia., 5.5 mm Nominal Outside Dia., 5.5 mm Actual Outside Dia., 25 PK O-Ring: 217, 1 3/16 in Nominal Inside Dia., 1 7/16 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 050, 5 1/4 in Nominal Inside Dia., 5 3/8 in Nominal Outside Dia., 75 Shore A, Black, 2 PK O-Ring: 38 mm Nominal Inside Dia., 43 mm Nominal Outside Dia., 43 mm Actual Outside Dia., 50 PK O-Ring: 89 mm Nominal Inside Dia., 95 mm Nominal Outside Dia., 95 mm Actual Outside Dia., 15 PK O-Ring: 211, 13/16 in Nominal Inside Dia., 1 1/16 in Nominal Outside Dia., 90 Shore A O-Ring: 218, 1 1/4 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 90 Shore A O-Ring: 48.7 mm Nominal Inside Dia., 55.7 mm Nominal Outside Dia., 70 Shore A, Black, 10 PK ◀◀ ◀ ▶ ▶▶
