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: 14 mm Nominal Inside Dia., 18 mm Nominal Outside Dia., 18 mm Actual Outside Dia., Std, 25 PK O-Ring: 029, 1 1/2 in Nominal Inside Dia., 1 5/8 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 30.5 mm Nominal Inside Dia., 32.5 mm Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 49/64 in Nominal Inside Dia., 1.004 in Actual Outside Dia., 55 Shore D, White, 50 PK O-Ring: 28 mm Nominal Inside Dia., 32 mm Nominal Outside Dia., 32 mm Actual Outside Dia., 10 PK O-Ring: 924, 4 in Nominal Inside Dia., 4 3/16 in Nominal Outside Dia., 75 Shore A, Black, 25 PK O-Ring: 128, 1 1/2 in Nominal Inside Dia., 1 11/16 in Nominal Outside Dia., 90 Shore A, Black, 25 PK O-Ring: 20 mm Nominal Inside Dia., 24 mm Nominal Outside Dia., 24 mm Actual Outside Dia., Red, 10 PK O-Ring: 326, 1 5/8 in Nominal Inside Dia., 2 in Nominal Outside Dia., 70 Shore A, Black, Inch, 50 PK O-Ring: 361, 6 in Nominal Inside Dia., 6 3/8 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 10.1 mm Nominal Inside Dia., 13.3 mm Nominal Outside Dia., 70 Shore A, Black, 100 PK Backup Ring, Contoured: Buna N, For 351, 0.076 in Thick, 0.262 in Radius, 10 PK O-Ring: 449, 10 in Nominal Inside Dia., 10 1/2 in Nominal Outside Dia., 90 Shore A, Black, Inch O-Ring: 426, 4 5/8 in Nominal Inside Dia., 5 1/8 in Nominal Outside Dia., 90 Shore A, Black, 2 PK O-Ring: 148, 2 3/4 in Nominal Inside Dia., 2 15/16 in Nominal Outside Dia., 80 Shore A, Black, 5 PK O-Ring: 319.5 mm Nominal Inside Dia., 336.3 mm Nominal Outside Dia., 336.3 mm Actual Outside Dia. O-Ring: 131, 1 11/16 in Nominal Inside Dia., 1 7/8 in Nominal Outside Dia., 70 Shore A, Inch, 2 PK O-Ring: 315 mm Nominal Inside Dia., 325 mm Nominal Outside Dia., 325 mm Actual Outside Dia., Black O-Ring: 214, 1 in Nominal Inside Dia., 1 1/4 in Nominal Outside Dia., 1.262 in Actual Outside Dia. O-Ring: 225, 1 7/8 in Nominal Inside Dia., 2 1/8 in Nominal Outside Dia., 90 Shore A, Black, 5 PK ◀◀ ◀ ▶ ▶▶
