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: 044, 3 3/4 in Nominal Inside Dia., 3 7/8 in Nominal Outside Dia., 75 Shore A, Brown, 10 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: 26 mm Nominal Inside Dia., 30 mm Nominal Outside Dia., 30 mm Actual Outside Dia., X, 5 PK O-Ring: 110, 3/8 in Nominal Inside Dia., 9/16 in Nominal Outside Dia., 70 Shore A, Black, 10 PK ◀◀ ◀ ▶ ▶▶
