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: 27 mm Nominal Inside Dia., 32 mm Nominal Outside Dia., 32 mm Actual Outside Dia., Red, 25 PK O-Ring: 66 mm Nominal Inside Dia., 72 mm Nominal Outside Dia., 72 mm Actual Outside Dia., 10 PK O-Ring: 257, 5 7/8 in Nominal Inside Dia., 6 1/8 in Nominal Outside Dia., 75 Shore A, Blue O-Ring: 127, 1 7/16 in Nominal Inside Dia., 1 5/8 in Nominal Outside Dia., 80 Shore A, Black, 10 PK Backup Ring, Contoured: Buna N, For 461, 0.117 in Thick, 0.344 in Radius, 2 PK O-Ring: 19.8 mm Nominal Inside Dia., 24.6 mm Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 458, 14 1/2 in Nominal Inside Dia., 15 in Nominal Outside Dia., 90 Shore A, Black O-Ring: 99.5 mm Nominal Inside Dia., 105.5 mm Nominal Outside Dia., 70 Shore A, Black, 15 PK O-Ring: 36 mm Nominal Inside Dia., 46 mm Nominal Outside Dia., 46 mm Actual Outside Dia., Std, 10 PK O-Ring: 903, 3/16 in Nominal Outside Dia., 0.429 in Actual Outside Dia., 75 Shore A, Black, 25 PK O-Ring: 339, 3 1/4 in Nominal Inside Dia., 3 5/8 in Nominal Outside Dia., 70 Shore A, Red, 50 PK O-Ring: 24.4 mm Nominal Inside Dia., 30.6 mm Nominal Outside Dia., 30.6 mm Actual Outside Dia. O-Ring: 313, 11/16 in Nominal Inside Dia., 1 1/16 in Nominal Outside Dia., 90 Shore A, Black, 10 PK O-Ring: 232, 2 3/4 in Nominal Inside Dia., 3 in Nominal Outside Dia., 70 Shore A, Black, 2 PK O-Ring: 007, 5/32 in Nominal Inside Dia., 9/32 in Nominal Outside Dia., 70 Shore A, Red, 25,000 PK O-Ring: 154, 3 3/4 in Nominal Inside Dia., 3 15/16 in Nominal Outside Dia., 75 Shore A, Blue O-Ring: 225, 1 7/8 in Nominal Inside Dia., 2 1/8 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 5 mm Nominal Inside Dia., 9 mm Nominal Outside Dia., 9 mm Actual Outside Dia., Red, 50 PK Backup Ring, Contoured: Buna N, For 387, 0.076 in Thick, 0.262 in Radius, 2 PK O-Ring: 029, 1 1/2 in Nominal Inside Dia., 1 5/8 in Nominal Outside Dia., 75 Shore A, Black, Inch ◀◀ ◀ ▶ ▶▶
