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: 10 mm Nominal Inside Dia., 20 mm Nominal Outside Dia., 20 mm Actual Outside Dia., 50 PK O-Ring: 82 mm Nominal Inside Dia., 87 mm Nominal Outside Dia., 87 mm Actual Outside Dia., 5 PK O-Ring: 6 mm Nominal Inside Dia., 10 mm Nominal Outside Dia., 10 mm Actual Outside Dia., 50 PK O-Ring: 44 mm Nominal Inside Dia., 51 mm Nominal Outside Dia., 51 mm Actual Outside Dia., 75 Shore A O-Ring: 357, 5 1/2 in Nominal Inside Dia., 5 7/8 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 4.8 mm Nominal Inside Dia., 8.6 mm Nominal Outside Dia., 8.6 mm Actual Outside Dia., 100 PK O-Ring: 9 mm Nominal Inside Dia., 13 mm Nominal Outside Dia., 13 mm Actual Outside Dia., 100 PK O-Ring: 153, 3 1/2 in Nominal Inside Dia., 3 11/16 in Nominal Outside Dia., 60 Shore A, White, 2 PK O-Ring: 127, 1 7/16 in Nominal Inside Dia., 1 5/8 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 049, 5 in Nominal Inside Dia., 5 1/8 in Nominal Outside Dia., 70 Shore A, Red, 2 PK O-Ring: 374, 9 1/4 in Nominal Inside Dia., 9 5/8 in Nominal Outside Dia., 90 Shore A, Black O-Ring: 149.5 mm Nominal Inside Dia., 155.5 mm Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 020, 7/8 in Nominal Inside Dia., 1 in Nominal Outside Dia., 70 Shore A, Black, Inch, 5 PK O-Ring: 337, 3 in Nominal Inside Dia., 3 3/8 in Nominal Outside Dia., 3.395 in Actual Outside Dia. O-Ring: 16 mm Nominal Inside Dia., 19 mm Nominal Outside Dia., 19 mm Actual Outside Dia., X, 10 PK Backup Ring, Contoured: Buna N, For 156, 0.053 in Thick, 0.129 in Radius, 10 PK O-Ring: 342, 3 5/8 in Nominal Inside Dia., 4 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 006, 1/8 in Nominal Inside Dia., 1/4 in Nominal Outside Dia., 70 Shore A, Black, Inch, 10 PK O-Ring: 115, 11/16 in Nominal Inside Dia., 7/8 in Nominal Outside Dia., 75 Shore A, Black, 25 PK O-Ring: 39 mm Nominal Inside Dia., 41 mm Nominal Outside Dia., 41 mm Actual Outside Dia., 25 PK ◀◀ ◀ ▶ ▶▶
