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: 134, 1 7/8 in Nominal Inside Dia., 2 1/16 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 13.1 mm Nominal Inside Dia., 18.34 mm Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 130, 1 5/8 in Nominal Inside Dia., 1 13/16 in Nominal Outside Dia., 90 Shore A, Black, 25 PK O-Ring: 110, 3/8 in Nominal Inside Dia., 9/16 in Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 235, 3 1/8 in Nominal Inside Dia., 3 3/8 in Nominal Outside Dia., 50 Shore A, Red, 5 PK O-Ring: 372, 8 3/4 in Nominal Inside Dia., 9 1/8 in Nominal Outside Dia., 70 Shore A, Red, 5 PK O-Ring: 118, 7/8 in Nominal Inside Dia., 1 1/16 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 20 mm Nominal Inside Dia., 24 mm Nominal Outside Dia., 24 mm Actual Outside Dia., 75 Shore A Backup Ring, Contoured: Buna N, For 348, 0.076 in Thick, 0.262 in Radius, 10 PK O-Ring: 393, 24 in Nominal Inside Dia., 24 3/8 in Nominal Outside Dia., 24.36 in Actual Outside Dia. O-Ring: 116, 3/4 in Nominal Inside Dia., 15/16 in Nominal Outside Dia., 75 Shore A, Brown, 50 PK O-Ring: 252, 5 1/4 in Nominal Inside Dia., 5 1/2 in Nominal Outside Dia., 70 Shore A, Red, 10 PK O-Ring: 250, 5 in Nominal Inside Dia., 5 1/4 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 277, 11 1/2 in Nominal Inside Dia., 11 3/4 in Nominal Outside Dia., 90 Shore A, Black, 2 PK O-Ring: 009, 7/32 in Nominal Inside Dia., 11/32 in Nominal Outside Dia., 75 Shore A, Black, Inch O-Ring: 40 mm Nominal Inside Dia., 46 mm Nominal Outside Dia., 46 mm Actual Outside Dia., 10 PK O-Ring: 30 mm Nominal Inside Dia., 36 mm Nominal Outside Dia., 36 mm Actual Outside Dia., 10 PK O-Ring: 021, 15/16 in Nominal Inside Dia., 1 1/16 in Nominal Outside Dia., 75 Shore A, Black, Inch O-Ring: 53 mm Nominal Inside Dia., 57 mm Nominal Outside Dia., 57 mm Actual Outside Dia., 25 PK O-Ring: 184.3 mm Nominal Inside Dia., 195.7 mm Nominal Outside Dia., 70 Shore A, Black, 2 PK ◀◀ ◀ ▶ ▶▶
