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. ◀◀ ◀ ▶ ▶▶ Backup Ring, Contoured: Buna N, For 114, 0.053 in Thick, 0.129 in Radius, 100 PK O-Ring: 35 mm Nominal Inside Dia., 39 mm Nominal Outside Dia., 39 mm Actual Outside Dia., 10 PK O-Ring: 139, 2 3/16 in Nominal Inside Dia., 2 3/8 in Nominal Outside Dia., 55 Shore D, White, 5 PK O-Ring: 048, 4 3/4 in Nominal Inside Dia., 4 7/8 in Nominal Outside Dia., 70 Shore A, Red, 2 PK O-Ring: 95 mm Nominal Inside Dia., 104 mm Nominal Outside Dia., 104 mm Actual Outside Dia., 2 PK O-Ring: 013, 7/16 in Nominal Inside Dia., 9/16 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 47 mm Nominal Inside Dia., 50 mm Nominal Outside Dia., 50 mm Actual Outside Dia., 5 PK O-Ring: 028, 1 3/8 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 017, 11/16 in Nominal Inside Dia., 13/16 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 240 mm Nominal Inside Dia., 246 mm Nominal Outside Dia., 246 mm Actual Outside Dia., 2 PK O-Ring: 932, 4 1/4 in Nominal Inside Dia., 4 7/16 in Nominal Outside Dia., 75 Shore A, Black, 25 PK O-Ring: 108, 1/4 in Nominal Inside Dia., 7/16 in Nominal Outside Dia., 70 Shore A, Black, 100 PK O-Ring: 031, 1 3/4 in Nominal Inside Dia., 1 7/8 in Nominal Outside Dia., 90 Shore A, Black, 25 PK O-Ring: 269, 8 3/4 in Nominal Inside Dia., 9 in Nominal Outside Dia., 70 Shore A, Red, 5 PK O-Ring: 11 mm Nominal Inside Dia., 14 mm Nominal Outside Dia., 14 mm Actual Outside Dia., Std, 25 PK Backup Ring, Contoured: Buna N, For 442, 0.117 in Thick, 0.344 in Radius, 10 PK Backup Ring, Contoured: Buna N, For 370, 0.076 in Thick, 0.262 in Radius, 10 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: 023, 1 1/16 in Nominal Inside Dia., 1 3/16 in Nominal Outside Dia., 75 Shore A, Black, 10 PK O-Ring: 108, 1/4 in Nominal Inside Dia., 7/16 in Nominal Outside Dia., 70 Shore A, Blue, 5 PK ◀◀ ◀ ▶ ▶▶
