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: 338, 3 1/8 in Nominal Inside Dia., 3 1/2 in Nominal Outside Dia., 90 Shore A, Black, 5 PK Backup Ring: Hytrel, For 441, 0.099 in Thick, Orange, 5 PK O-Ring: 115, 11/16 in Nominal Inside Dia., 7/8 in Nominal Outside Dia., 55 Shore D, White, 25 PK O-Ring: 9.3 mm Nominal Inside Dia., 14.1 mm Nominal Outside Dia., 14.1 mm Actual Outside Dia., 50 PK O-Ring: 220 mm Nominal Inside Dia., 228 mm Nominal Outside Dia., 228 mm Actual Outside Dia., 2 PK O-Ring: 114 mm Nominal Inside Dia., 126 mm Nominal Outside Dia., 126 mm Actual Outside Dia., Black O-Ring: 213, 15/16 in Nominal Inside Dia., 1 3/16 in Nominal Outside Dia., 70 Shore A, Black, 100 PK O-Ring: 4 mm Nominal Inside Dia., 6 mm Nominal Outside Dia., 6 mm Actual Outside Dia., Black, 100 PK O-Ring: 16 mm Nominal Inside Dia., 25 mm Nominal Outside Dia., 25 mm Actual Outside Dia., 10 PK O-Ring: 145, 2 9/16 in Nominal Inside Dia., 2 3/4 in Nominal Outside Dia., 55 Shore D, White, 5 PK O-Ring: 28.7 mm Nominal Inside Dia., 35.7 mm 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, Black, Inch, 2 PK O-Ring: 20.5 mm Nominal Inside Dia., 24.5 mm Nominal Outside Dia., 75 Shore A, Black, 10 PK O-Ring: 019, 13/16 in Nominal Inside Dia., 15/16 in Nominal Outside Dia., 70 Shore A, Black, 100 PK O-Ring: 3 mm Nominal Inside Dia., 6 mm Nominal Outside Dia., 6 mm Actual Outside Dia., Black, 10 PK O-Ring: 174.5 mm Nominal Inside Dia., 191.3 mm Nominal Outside Dia., 70 Shore A, Black, 2 PK O-Ring: 33 mm Nominal Inside Dia., 43 mm Nominal Outside Dia., 43 mm Actual Outside Dia., 2 PK O-Ring: 208, 5/8 in Nominal Inside Dia., 7/8 in Nominal Outside Dia., 50 Shore A, Red, 25 PK O-Ring: 15.1 mm Nominal Inside Dia., 20.32 mm Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 320, 1 1/8 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 70 Shore A, Black, 25 PK ◀◀ ◀ ▶ ▶▶
