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: 333, 2 1/2 in Nominal Inside Dia., 2 7/8 in Nominal Outside Dia., 70 Shore A, Black, 25 PK Backup Ring: Hytrel, For 330, 0.065 in Thick, Orange, 25 PK O-Ring: 81 mm Nominal Inside Dia., 85 mm Nominal Outside Dia., 85 mm Actual Outside Dia., 25 PK O-Ring: 222, 1 1/2 in Nominal Inside Dia., 1 3/4 in Nominal Outside Dia., 75 Shore A, Black, X, 5 PK O-Ring: 22 mm Nominal Inside Dia., 26 mm Nominal Outside Dia., 26 mm Actual Outside Dia., 75 Shore A O-Ring: 340, 3 3/8 in Nominal Inside Dia., 3 3/4 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 5 mm Nominal Inside Dia., 8 mm Nominal Outside Dia., 8 mm Actual Outside Dia., Black, 100 PK O-Ring: 10 mm Nominal Inside Dia., 12 mm Nominal Outside Dia., 12 mm Actual Outside Dia., Std, 25 PK O-Ring: 211, 13/16 in Nominal Inside Dia., 1 1/16 in Nominal Outside Dia., 50 Shore A, Black, 10 PK O-Ring: 7 mm Nominal Inside Dia., 13 mm Nominal Outside Dia., 13 mm Actual Outside Dia., Std, 100 PK O-Ring: 2.8 mm Nominal Inside Dia., 6 mm Nominal Outside Dia., 6 mm Actual Outside Dia., 50 PK O-Ring: 22 mm Nominal Inside Dia., 25 mm Nominal Outside Dia., 25 mm Actual Outside Dia., Std, 10 PK Backup Ring, Contoured: Buna N, For 127, 0.053 in Thick, 0.129 in Radius, 100 PK Backup Ring, Contoured: Buna N, For 135, 0.053 in Thick, 0.129 in Radius, 100 PK O-Ring: 104 mm Nominal Inside Dia., 114 mm Nominal Outside Dia., 114 mm Actual Outside Dia., 2 PK O-Ring: 320, 1 1/8 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 11 mm Nominal Inside Dia., 15 mm Nominal Outside Dia., 15 mm Actual Outside Dia., 50 PK O-Ring: 7.6 mm Nominal Inside Dia., 11.2 mm Nominal Outside Dia., 11.2 mm Actual Outside Dia., 50 PK O-Ring: 021, 15/16 in Nominal Inside Dia., 1 1/16 in Nominal Outside Dia., 80 Shore A, Black, 10 PK O-Ring: 57 mm Nominal Inside Dia., 67 mm Nominal Outside Dia., 67 mm Actual Outside Dia., 10 PK ◀◀ ◀ ▶ ▶▶
