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: 216, 1 1/8 in Nominal Inside Dia., 1 3/8 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 4.5 mm Nominal Inside Dia., 6.5 mm Nominal Outside Dia., 6.5 mm Actual Outside Dia., 50 PK O-Ring: 81 mm Nominal Inside Dia., 89 mm Nominal Outside Dia., 89 mm Actual Outside Dia., 10 PK Backup Ring, Contoured: Buna N, For 310, 0.076 in Thick, 0.262 in Radius, 100 PK O-Ring: 8 mm Nominal Inside Dia., 12 mm Nominal Outside Dia., 12 mm Actual Outside Dia., 100 PK O-Ring: 109 mm Nominal Inside Dia., 116 mm Nominal Outside Dia., 116 mm Actual Outside Dia., 2 PK O-Ring: 211, 13/16 in Nominal Inside Dia., 1 1/16 in Nominal Outside Dia., 85 Shore A O-Ring: 448, 9 1/2 in Nominal Inside Dia., 10 in Nominal Outside Dia., 10.025 in Actual Outside Dia. O-Ring: 84 mm Nominal Inside Dia., 92 mm Nominal Outside Dia., 92 mm Actual Outside Dia., 75 Shore A O-Ring: 226, 2 in Nominal Inside Dia., 2 1/4 in Nominal Outside Dia., 70 Shore A, Blue, 5 PK O-Ring: 11 mm Nominal Inside Dia., 17 mm Nominal Outside Dia., 17 mm Actual Outside Dia., 100 PK O-Ring: 150, 2 7/8 in Nominal Inside Dia., 3 1/16 in Nominal Outside Dia., 90 Shore A, Black, 10 PK O-Ring: 216, 1 1/8 in Nominal Inside Dia., 1 3/8 in Nominal Outside Dia., 80 Shore A, Black, 5 PK Backup Ring: Hytrel, For 240, 0.045 in Thick, Black, 25 PK O-Ring: 257, 5 7/8 in Nominal Inside Dia., 6 1/8 in Nominal Outside Dia., 75 Shore A, Brown, 2 PK O-Ring: 130 mm Nominal Inside Dia., 134 mm Nominal Outside Dia., 134 mm Actual Outside Dia., 5 PK O-Ring: 259, 6 1/4 in Nominal Inside Dia., 6 1/2 in Nominal Outside Dia., 70 Shore A, Red, Inch O-Ring: 142 mm Nominal Inside Dia., 148 mm Nominal Outside Dia., 148 mm Actual Outside Dia., Black O-Ring: 264, 7 1/2 in Nominal Inside Dia., 7 3/4 in Nominal Outside Dia., 90 Shore A, Black, 2 PK O-Ring: 024, 1 1/8 in Nominal Inside Dia., 1 1/4 in Nominal Outside Dia., 75 Shore A, Black, Inch ◀◀ ◀ ▶ ▶▶
