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: 020, 7/8 in Nominal Inside Dia., 1 in Nominal Outside Dia., 50 Shore A, Black, 25 PK O-Ring: 8.9 mm Nominal Inside Dia., 12.7 mm Nominal Outside Dia., 12.7 mm Actual Outside Dia., 50 PK O-Ring: 23.5 mm Nominal Inside Dia., 26.5 mm Nominal Outside Dia., 70 Shore A, Black, 100 PK O-Ring: 10 mm Nominal Inside Dia., 12 mm Nominal Outside Dia., 12 mm Actual Outside Dia., 25 PK O-Ring: 123 mm Nominal Inside Dia., 127 mm Nominal Outside Dia., 127 mm Actual Outside Dia., 5 PK O-Ring: 212, 7/8 in Nominal Inside Dia., 1 1/8 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 109.6 mm Nominal Inside Dia., 121 mm Nominal Outside Dia., 121 mm Actual Outside Dia., 2 PK O-Ring: 268, 8 1/2 in Nominal Inside Dia., 8 3/4 in Nominal Outside Dia., 90 Shore A, Black, 2 PK O-Ring: 273, 9 3/4 in Nominal Inside Dia., 10 in Nominal Outside Dia., 90 Shore A, Black, Inch, 2 PK O-Ring: 008, 3/16 in Nominal Inside Dia., 5/16 in Nominal Outside Dia., 0.316 in Actual Outside Dia. O-Ring: 253, 5 3/8 in Nominal Inside Dia., 5 5/8 in Nominal Outside Dia., 75 Shore A, Black, 2 PK O-Ring: 7 mm Nominal Inside Dia., 9 mm Nominal Outside Dia., 9 mm Actual Outside Dia., Brown, 50 PK O-Ring: 412, 2 7/8 in Nominal Inside Dia., 3 3/8 in Nominal Outside Dia., 3.4 in Actual Outside Dia. O-Ring: 218, 1 1/4 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 55 Shore D, White, 10 PK O-Ring: 22 mm Nominal Inside Dia., 31 mm Nominal Outside Dia., 31 mm Actual Outside Dia., 10 PK O-Ring: 34.6 mm Nominal Inside Dia., 39.4 mm Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 226, 2 in Nominal Inside Dia., 2 1/4 in Nominal Outside Dia., 50 Shore A, Black, 10 PK Backup Ring: Hytrel, For 433, 0.1 in Thick, Black, 10 PK O-Ring: 212, 7/8 in Nominal Inside Dia., 1 1/8 in Nominal Outside Dia., 70 Shore A, Black, 100 PK O-Ring: 74 mm Nominal Inside Dia., 86 mm Nominal Outside Dia., 86 mm Actual Outside Dia., 2 PK ◀◀ ◀ ▶ ▶▶
