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: 19.1 mm Nominal Inside Dia., 22.3 mm Nominal Outside Dia., 70 Shore A, Black, Metric, 25 PK Backup Ring, Contoured: Buna N, For 109, 0.053 in Thick, 0.129 in Radius, 100 PK O-Ring: 41 mm Nominal Inside Dia., 47 mm Nominal Outside Dia., 47 mm Actual Outside Dia., Std, 25 PK O-Ring: 6 mm Nominal Inside Dia., 10 mm Nominal Outside Dia., 10 mm Actual Outside Dia., 25 PK O-Ring: 105, 5/32 in Nominal Inside Dia., 11/32 in Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 030, 1 5/8 in Nominal Inside Dia., 1 3/4 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 85 mm Nominal Inside Dia., 89 mm Nominal Outside Dia., 89 mm Actual Outside Dia., 10 PK O-Ring: 173, 8 1/2 in Nominal Inside Dia., 8 11/16 in Nominal Outside Dia., 90 Shore A, Black, 2 PK O-Ring: 150, 2 7/8 in Nominal Inside Dia., 3 1/16 in Nominal Outside Dia., 75 Shore A, Brown, 10 PK O-Ring: 016, 5/8 in Nominal Inside Dia., 3/4 in Nominal Outside Dia., 75 Shore A, Brown, 100 PK O-Ring: 474, 25 in Nominal Inside Dia., 25 1/2 in Nominal Outside Dia., 25.49 in Actual Outside Dia. O-Ring: 84.4 mm Nominal Inside Dia., 90.6 mm Nominal Outside Dia., 90.6 mm Actual Outside Dia., 2 PK Backup Ring, Contoured: Buna N, For 004, 0.049 in Thick, 0.087 in Radius, 100 PK O-Ring: 80 mm Nominal Inside Dia., 85 mm Nominal Outside Dia., 85 mm Actual Outside Dia., 2 PK O-Ring: 7 mm Nominal Inside Dia., 13 mm Nominal Outside Dia., 13 mm Actual Outside Dia., 25 PK O-Ring: 24 mm Nominal Inside Dia., 28 mm Nominal Outside Dia., 28 mm Actual Outside Dia., 20 PK O-Ring: 61.6 mm Nominal Inside Dia., 66.4 mm Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 038, 2 5/8 in Nominal Inside Dia., 2 3/4 in Nominal Outside Dia., 75 Shore A, Brown, 10 PK O-Ring: 243, 4 1/8 in Nominal Inside Dia., 4 3/8 in Nominal Outside Dia., 90 Shore A, Black, 5 PK O-Ring: 190 mm Nominal Inside Dia., 202 mm Nominal Outside Dia., 202 mm Actual Outside Dia., 2 PK ◀◀ ◀ ▶ ▶▶
