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: 206, 1/2 in Nominal Inside Dia., 3/4 in Nominal Outside Dia., 60 Shore A, White, 10 PK O-Ring: 11.5 mm Nominal Inside Dia., 13.5 mm Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 84.6 mm Nominal Inside Dia., 96 mm Nominal Outside Dia., 96 mm Actual Outside Dia., 5 PK O-Ring: 251, 5 1/8 in Nominal Inside Dia., 5 3/8 in Nominal Outside Dia., 75 Shore A, Black, 5 PK O-Ring: 148, 2 3/4 in Nominal Inside Dia., 2 15/16 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 037, 2 1/2 in Nominal Inside Dia., 2 5/8 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 114, 5/8 in Nominal Inside Dia., 13/16 in Nominal Outside Dia., 75 Shore A, Black, 25 PK O-Ring: 5 mm Nominal Inside Dia., 8 mm Nominal Outside Dia., 8 mm Actual Outside Dia., Black, 50 PK O-Ring: 19 mm Nominal Inside Dia., 25 mm Nominal Outside Dia., 25 mm Actual Outside Dia., 10 PK O-Ring: 218, 1 1/4 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 141, 2 5/16 in Nominal Inside Dia., 2 1/2 in Nominal Outside Dia., 90 Shore A, Black, 10 PK O-Ring: 26 mm Nominal Inside Dia., 30 mm Nominal Outside Dia., 30 mm Actual Outside Dia., 75 Shore A O-Ring: 338, 3 1/8 in Nominal Inside Dia., 3 1/2 in Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 54.5 mm Nominal Inside Dia., 60.5 mm Nominal Outside Dia., 60.5 mm Actual Outside Dia., 5 PK O-Ring: 83 mm Nominal Inside Dia., 89 mm Nominal Outside Dia., 89 mm Actual Outside Dia., 10 PK O-Ring: 32 mm Nominal Inside Dia., 42 mm Nominal Outside Dia., 42 mm Actual Outside Dia., 25 PK O-Ring: 176, 9 1/4 in Nominal Inside Dia., 9 7/16 in Nominal Outside Dia., 75 Shore A, Brown, 2 PK O-Ring: 14.3 mm Nominal Inside Dia., 19.1 mm Nominal Outside Dia., 75 Shore A, Black, 25 PK O-Ring: 11 mm Nominal Inside Dia., 15.8 mm Nominal Outside Dia., 15.8 mm Actual Outside Dia., 100 PK Backup Ring, Contoured: Buna N, For 113, 0.053 in Thick, 0.129 in Radius, 100 PK ◀◀ ◀ ▶ ▶▶
