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: 109 mm Nominal Inside Dia., 115 mm Nominal Outside Dia., 115 mm Actual Outside Dia., 5 PK O-Ring: 129, 1 9/16 in Nominal Inside Dia., 1 3/4 in Nominal Outside Dia., 75 Shore A, Black, Inch O-Ring: 14 mm Nominal Inside Dia., 18 mm Nominal Outside Dia., 18 mm Actual Outside Dia., Std, 50 PK O-Ring: 932, 26 in Nominal Inside Dia., 26 3/8 in Nominal Outside Dia., 70 Shore A, Red, 10 PK O-Ring: 443, 7 1/2 in Nominal Inside Dia., 8 in Nominal Outside Dia., 70 Shore A, Red, 2 PK O-Ring: 38 mm Nominal Inside Dia., 46 mm Nominal Outside Dia., 46 mm Actual Outside Dia., Std, 25 PK O-Ring: 007, 5/32 in Nominal Inside Dia., 9/32 in Nominal Outside Dia., 80 Shore A, Black, 25 PK O-Ring: 3 mm Nominal Inside Dia., 6 mm Nominal Outside Dia., 6 mm Actual Outside Dia., Black, 25 PK O-Ring: 31 mm Nominal Inside Dia., 34 mm Nominal Outside Dia., 34 mm Actual Outside Dia., 100 PK O-Ring: 208, 5/8 in Nominal Inside Dia., 7/8 in Nominal Outside Dia., 70 Shore A, Black, Inch, 25 PK Backup Ring, Contoured: Buna N, For 211, 0.05 in Thick, 0.174 in Radius, 100 PK O-Ring: 326, 1 5/8 in Nominal Inside Dia., 2 in Nominal Outside Dia., 50 Shore A, Black, 5 PK O-Ring: 442, 7 1/4 in Nominal Inside Dia., 7 3/4 in Nominal Outside Dia., 75 Shore A, Brown O-Ring: 034, 2 1/8 in Nominal Inside Dia., 2 1/4 in Nominal Outside Dia., 70 Shore A, Red, FDA, 2 PK O-Ring: 473, 24 in Nominal Inside Dia., 24 1/2 in Nominal Outside Dia., 24.49 in Actual Outside Dia. O-Ring: 928, 1/4 in Nominal Inside Dia., 3/8 in Nominal Outside Dia., 70 Shore A, Black, 40 PK O-Ring: 203, 5/16 in Nominal Inside Dia., 9/16 in Nominal Outside Dia., 75 Shore A, Brown, 25 PK O-Ring: 7.5 mm Nominal Inside Dia., 10.5 mm Nominal Outside Dia., 10.5 mm Actual Outside Dia., 50 PK O-Ring: 147, 2 11/16 in Nominal Inside Dia., 2 7/8 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 6.4 mm Nominal Inside Dia., 9.91 mm Nominal Outside Dia., 9.91 mm Actual Outside Dia., 50 PK ◀◀ ◀ ▶ ▶▶
