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: 043, 3 1/2 in Nominal Inside Dia., 3 5/8 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 165, 6 1/2 in Nominal Inside Dia., 6 11/16 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 53 mm Nominal Inside Dia., 58 mm Nominal Outside Dia., 58 mm Actual Outside Dia., 25 PK O-Ring: 448, 9 1/2 in Nominal Inside Dia., 10 in Nominal Outside Dia., 10.025 in Actual Outside Dia. O-Ring: 222, 1 1/2 in Nominal Inside Dia., 1 3/4 in Nominal Outside Dia., 50 Shore A, Black, 10 PK O-Ring: 904, 1/4 in Nominal Outside Dia., 0.495 in Actual Outside Dia., 75 Shore A, Black, 25 PK O-Ring: 47.6 mm Nominal Inside Dia., 59 mm Nominal Outside Dia., 59 mm Actual Outside Dia., Black O-Ring: 138, 2 1/8 in Nominal Inside Dia., 2 5/16 in Nominal Outside Dia., 50 Shore A, Black, 25 PK O-Ring: 54.2 mm Nominal Inside Dia., 65.6 mm Nominal Outside Dia., 65.6 mm Actual Outside Dia. O-Ring: 130, 1 5/8 in Nominal Inside Dia., 1 13/16 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 13 mm Nominal Inside Dia., 19 mm Nominal Outside Dia., 19 mm Actual Outside Dia., 100 PK O-Ring: 18 mm Nominal Inside Dia., 27 mm Nominal Outside Dia., 27 mm Actual Outside Dia., 10 PK O-Ring: 13 mm Nominal Inside Dia., 18 mm Nominal Outside Dia., 18 mm Actual Outside Dia., Red, 25 PK O-Ring: 119, 15/16 in Nominal Inside Dia., 1 1/8 in Nominal Outside Dia., 75 Shore A, Black, 10 PK Backup Ring, Contoured: Buna N, For 388, 0.076 in Thick, 0.262 in Radius, 2 PK O-Ring: 471, 22 in Nominal Inside Dia., 22 1/2 in Nominal Outside Dia., 70 Shore A, Black, Inch O-Ring: 7 mm Nominal Inside Dia., 10 mm Nominal Outside Dia., 10 mm Actual Outside Dia., 50 PK O-Ring: 907, 7/16 in Nominal Outside Dia., 0.694 in Actual Outside Dia., 90 Shore A, Black, 25 PK O-Ring: 35 mm Nominal Inside Dia., 37.4 mm Nominal Outside Dia., 37.4 mm Actual Outside Dia., 50 PK O-Ring: 206, 1/2 in Nominal Inside Dia., 3/4 in Nominal Outside Dia., 75 Shore A, Black, 10 PK ◀◀ ◀ ▶ ▶▶
