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: 016, 5/8 in Nominal Inside Dia., 3/4 in Nominal Outside Dia., 70 Shore A, White, 25 PK O-Ring: 358, 5 5/8 in Nominal Inside Dia., 6 in Nominal Outside Dia., 75 Shore A, Brown, 2 PK O-Ring: 10 mm Nominal Inside Dia., 15 mm Nominal Outside Dia., 15 mm Actual Outside Dia., 10 PK O-Ring: 55 mm Nominal Inside Dia., 59 mm Nominal Outside Dia., 59 mm Actual Outside Dia., Red, 10 PK O-Ring: 225, 1 7/8 in Nominal Inside Dia., 2 1/8 in Nominal Outside Dia., 60 Shore A, White, 2 PK O-Ring: 212, 7/8 in Nominal Inside Dia., 1 1/8 in Nominal Outside Dia., 75 Shore A, Black, 2 PK O-Ring: 17 mm Nominal Inside Dia., 21 mm Nominal Outside Dia., 21 mm Actual Outside Dia., 100 PK O-Ring: 024, 1 1/8 in Nominal Inside Dia., 1 1/4 in Nominal Outside Dia., 75 Shore A, Brown, 50 PK O-Ring: 019, 13/16 in Nominal Inside Dia., 15/16 in Nominal Outside Dia., 60 Shore A, White, 10 PK O-Ring: 124.4 mm Nominal Inside Dia., 130.6 mm Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 109, 5/16 in Nominal Inside Dia., 1/2 in Nominal Outside Dia., 70 Shore A, Red, Inch, 10 PK O-Ring: 017, 11/16 in Nominal Inside Dia., 13/16 in Nominal Outside Dia., 50 Shore A, Black, 25 PK Backup Ring, Contoured: Buna N, For 146, 0.053 in Thick, 0.129 in Radius, 50 PK O-Ring: 015, 9/16 in Nominal Inside Dia., 11/16 in Nominal Outside Dia., 75 Shore A, Black, 5 PK O-Ring: 129, 1 9/16 in Nominal Inside Dia., 1 3/4 in Nominal Outside Dia., 50 Shore A, Red, 10 PK O-Ring: 017, 11/16 in Nominal Inside Dia., 13/16 in Nominal Outside Dia., 70 Shore A, White, 25 PK O-Ring: 34 mm Nominal Inside Dia., 44 mm Nominal Outside Dia., 44 mm Actual Outside Dia., 25 PK O-Ring: 014, 1/2 in Nominal Inside Dia., 5/8 in Nominal Outside Dia., 50 Shore A, Black, 25 PK O-Ring: 195 mm Nominal Inside Dia., 205 mm Nominal Outside Dia., 205 mm Actual Outside Dia., Black O-Ring: 016, 5/8 in Nominal Inside Dia., 3/4 in Nominal Outside Dia., 70 Shore A, Blue, 5 PK ◀◀ ◀ ▶ ▶▶
