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: 028, 1 3/8 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 111, 7/16 in Nominal Inside Dia., 5/8 in Nominal Outside Dia., 75 Shore A, Black, 5,000 PK O-Ring: 337, 3 in Nominal Inside Dia., 3 3/8 in Nominal Outside Dia., 80 Shore A, Black, 2 PK O-Ring: 001, 1/32 in Nominal Inside Dia., 3/32 in Nominal Outside Dia., 90 Shore A, Black, 100 PK O-Ring: 004, 5/64 in Nominal Inside Dia., 13/64 in Nominal Outside Dia., 75 Shore A, Brown, 100 PK O-Ring: 118, 7/8 in Nominal Inside Dia., 1 1/16 in Nominal Outside Dia., 55 Shore D, White, 10 PK O-Ring: 24 mm Nominal Inside Dia., 28 mm Nominal Outside Dia., 28 mm Actual Outside Dia., Red, 10 PK O-Ring: 53/64 in Nominal Inside Dia., 1.004 in Actual Outside Dia., 55 Shore D, White, 50 PK O-Ring: 415, 3 1/4 in Nominal Inside Dia., 3 3/4 in Nominal Outside Dia., 70 Shore A, Red O-Ring: 008, 3/16 in Nominal Inside Dia., 5/16 in Nominal Outside Dia., 55 Shore D, White, 50 PK O-Ring: 3.4 mm Nominal Inside Dia., 7.2 mm Nominal Outside Dia., 7.2 mm Actual Outside Dia., 25 PK O-Ring: 30 mm Nominal Inside Dia., 35 mm Nominal Outside Dia., 35 mm Actual Outside Dia., 10 PK O-Ring: 913, 13/16 in Nominal Outside Dia., 1.218 in Actual Outside Dia., 90 Shore A, Black, 100 PK Backup Ring: Hytrel, For 334, 0.065 in Thick, Orange, 25 PK O-Ring: 48 mm Nominal Inside Dia., 52 mm Nominal Outside Dia., 52 mm Actual Outside Dia., 25 PK Backup Ring, Contoured: Buna N, For 157, 0.053 in Thick, 0.129 in Radius, 10 PK O-Ring: 425, 4 1/2 in Nominal Inside Dia., 5 in Nominal Outside Dia., 90 Shore A, Black, 2 PK O-Ring: 200 mm Nominal Inside Dia., 206 mm Nominal Outside Dia., 206 mm Actual Outside Dia., 2 PK O-Ring: 35 mm Nominal Inside Dia., 38 mm Nominal Outside Dia., 38 mm Actual Outside Dia., 100 PK O-Ring: 384, 15 in Nominal Inside Dia., 15 3/8 in Nominal Outside Dia., 90 Shore A, Black, Inch ◀◀ ◀ ▶ ▶▶
