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: 25 mm Nominal Inside Dia., 29 mm Nominal Outside Dia., 29 mm Actual Outside Dia., 10 PK O-Ring: 204, 3/8 in Nominal Inside Dia., 5/8 in Nominal Outside Dia., 75 Shore A, Blue, 5 PK O-Ring: 429, 5 in Nominal Inside Dia., 5 1/2 in Nominal Outside Dia., 90 Shore A, Black, Inch, 2 PK O-Ring: 019, 13/16 in Nominal Inside Dia., 15/16 in Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 66 mm Nominal Inside Dia., 70 mm Nominal Outside Dia., 70 mm Actual Outside Dia., Std, 25 PK O-Ring: 8 mm Nominal Inside Dia., 13 mm Nominal Outside Dia., 13 mm Actual Outside Dia., Std, 25 PK O-Ring: 284, 18 in Nominal Inside Dia., 18 1/4 in Nominal Outside Dia., 90 Shore A, Black O-Ring: 017, 11/16 in Nominal Inside Dia., 13/16 in Nominal Outside Dia., 80 Shore A, Black, 25 PK O-Ring: 017, 11/16 in Nominal Inside Dia., 13/16 in Nominal Outside Dia., 75 Shore A, Black, Inch O-Ring: 002, 3/64 in Nominal Inside Dia., 9/64 in Nominal Outside Dia., 60 Shore A, White, 25 PK O-Ring: 32 mm Nominal Inside Dia., 37 mm Nominal Outside Dia., 37 mm Actual Outside Dia., Std, 50 PK O-Ring: 104.6 mm Nominal Inside Dia., 116 mm Nominal Outside Dia., 116 mm Actual Outside Dia., 2 PK O-Ring: 174 mm Nominal Inside Dia., 182 mm Nominal Outside Dia., 182 mm Actual Outside Dia., Black O-Ring: 51 mm Nominal Inside Dia., 54 mm Nominal Outside Dia., 54 mm Actual Outside Dia., 25 PK O-Ring: 326, 1 5/8 in Nominal Inside Dia., 2 in Nominal Outside Dia., 2.02 in Actual Outside Dia. Backup Ring, Contoured: Buna N, For 020, 0.049 in Thick, 0.087 in Radius, 100 PK O-Ring: 54 mm Nominal Inside Dia., 59 mm Nominal Outside Dia., 59 mm Actual Outside Dia., Std, 2 PK O-Ring: 245 mm Nominal Inside Dia., 251 mm Nominal Outside Dia., 251 mm Actual Outside Dia., 2 PK O-Ring: 34.5 mm Nominal Inside Dia., 39.5 mm Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 031, 1 3/4 in Nominal Inside Dia., 1 7/8 in Nominal Outside Dia., 70 Shore A, Black, 10 PK ◀◀ ◀ ▶ ▶▶
