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: 334, 2 5/8 in Nominal Inside Dia., 3 in Nominal Outside Dia., 75 Shore A, Brown, 5 PK O-Ring: 210, 3/4 in Nominal Inside Dia., 1 in Nominal Outside Dia., 70 Shore A, Red, Inch, 6,250 PK O-Ring: 16 mm Nominal Inside Dia., 24 mm Nominal Outside Dia., 24 mm Actual Outside Dia., 50 PK O-Ring: 47 mm Nominal Inside Dia., 54 mm Nominal Outside Dia., 54 mm Actual Outside Dia., 10 PK O-Ring: 117, 13/16 in Nominal Inside Dia., 1 in Nominal Outside Dia., 1.005 in Actual Outside Dia. O-Ring: 314.5 mm Nominal Inside Dia., 331.3 mm Nominal Outside Dia., 331.3 mm Actual Outside Dia. O-Ring: 119.4 mm Nominal Inside Dia., 125.6 mm Nominal Outside Dia., 70 Shore A, Black, 5 PK Backup Ring: Hytrel, For 229, 0.045 in Thick, Black, 50 PK O-Ring: 342, 3 5/8 in Nominal Inside Dia., 4 in Nominal Outside Dia., 90 Shore A, Black, Inch, 2 PK Backup Ring, Contoured: Buna N, For 266, 0.05 in Thick, 0.174 in Radius, 10 PK O-Ring: 2.5 mm Nominal Inside Dia., 5.5 mm Nominal Outside Dia., 5.5 mm Actual Outside Dia., 50 PK O-Ring: 012, 3/8 in Nominal Inside Dia., 1/2 in Nominal Outside Dia., 70 Shore A, Blue, Inch, 5 PK O-Ring: 20 mm Nominal Inside Dia., 26 mm Nominal Outside Dia., 26 mm Actual Outside Dia., X, 5 PK O-Ring: 51 mm Nominal Inside Dia., 60 mm Nominal Outside Dia., 60 mm Actual Outside Dia., 2 PK O-Ring: 210, 3/4 in Nominal Inside Dia., 1 in Nominal Outside Dia., 70 Shore A, Black, Inch, 10 PK O-Ring: 50 mm Nominal Inside Dia., 56 mm Nominal Outside Dia., 56 mm Actual Outside Dia., Std, 25 PK O-Ring: 015, 9/16 in Nominal Inside Dia., 11/16 in Nominal Outside Dia., 70 Shore A, Blue, 10 PK Backup Ring, Contoured: Buna N, For 271, 0.05 in Thick, 0.174 in Radius, 5 PK O-Ring: 48 mm Nominal Inside Dia., 56 mm Nominal Outside Dia., 56 mm Actual Outside Dia., 75 Shore A O-Ring: 9.8 mm Nominal Inside Dia., 13.6 mm Nominal Outside Dia., 13.6 mm Actual Outside Dia., 10 PK ◀◀ ◀ ▶ ▶▶
