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: 326, 1 5/8 in Nominal Inside Dia., 2 in Nominal Outside Dia., 55 Shore D, White, 2 PK O-Ring: 224, 1 3/4 in Nominal Inside Dia., 2 in Nominal Outside Dia., 2.012 in Actual Outside Dia. O-Ring: 104 mm Nominal Inside Dia., 112 mm Nominal Outside Dia., 112 mm Actual Outside Dia., 2 PK O-Ring: 227, 2 1/8 in Nominal Inside Dia., 2 3/8 in Nominal Outside Dia., 60 Shore A, White, 2 PK O-Ring: 75 mm Nominal Inside Dia., 79 mm Nominal Outside Dia., 79 mm Actual Outside Dia., Red, 5 PK O-Ring: 3.8 mm Nominal Inside Dia., 7.6 mm Nominal Outside Dia., 7.6 mm Actual Outside Dia., 100 PK O-Ring: 232, 2 3/4 in Nominal Inside Dia., 3 in Nominal Outside Dia., 60 Shore A, White, 2 PK O-Ring: 8 mm Nominal Inside Dia., 12 mm Nominal Outside Dia., 12 mm Actual Outside Dia., 25 PK O-Ring: 910, 3/4 in Nominal Inside Dia., 15/16 in Nominal Outside Dia., 75 Shore A, Brown, 25 PK O-Ring: 019, 13/16 in Nominal Inside Dia., 15/16 in Nominal Outside Dia., 70 Shore A, Black, 100 PK O-Ring: 151, 3 in Nominal Inside Dia., 3 3/16 in Nominal Outside Dia., 75 Shore A, Brown, 10 PK Backup Ring, Contoured: Buna N, For 273, 0.05 in Thick, 0.174 in Radius, 5 PK O-Ring: 907, 7/16 in Nominal Outside Dia., 0.694 in Actual Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 84 mm Nominal Inside Dia., 92 mm Nominal Outside Dia., 92 mm Actual Outside Dia., 10 PK O-Ring: 8 mm Nominal Inside Dia., 13 mm Nominal Outside Dia., 13 mm Actual Outside Dia., 50 PK O-Ring: 9.3 mm Nominal Inside Dia., 14.1 mm Nominal Outside Dia., 14.1 mm Actual Outside Dia., 50 PK O-Ring: 130 mm Nominal Inside Dia., 134 mm Nominal Outside Dia., 134 mm Actual Outside Dia., 2 PK O-Ring: 5 mm Nominal Inside Dia., 7 mm Nominal Outside Dia., 7 mm Actual Outside Dia., Red, 50 PK Backup Ring: Hytrel, For 228, 0.045 in Thick, Orange, 50 PK O-Ring: 208, 5/8 in Nominal Inside Dia., 7/8 in Nominal Outside Dia., 60 Shore A, White, 5 PK ◀◀ ◀ ▶ ▶▶
