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: 28.5 mm Nominal Inside Dia., 32.5 mm Nominal Outside Dia., 70 Shore A, Black, 50 PK Backup Ring, Contoured: Buna N, For 015, 0.049 in Thick, 0.087 in Radius, 100 PK O-Ring: 018, 3/4 in Nominal Inside Dia., 7/8 in Nominal Outside Dia., 50 Shore A, Red, 25 PK O-Ring: 15 mm Nominal Inside Dia., 21 mm Nominal Outside Dia., 21 mm Actual Outside Dia., 25 PK O-Ring: 99 mm Nominal Inside Dia., 103 mm Nominal Outside Dia., 103 mm Actual Outside Dia., 10 PK O-Ring: 222, 1 1/2 in Nominal Inside Dia., 1 3/4 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 206, 1/2 in Nominal Inside Dia., 3/4 in Nominal Outside Dia., 70 Shore A, Black, Inch, 25 PK X-Ray and Metal Detectable O-Ring: 115, 3/16 in Nominal Inside Dia., 9/16 in Nominal Outside Dia. O-Ring: 163, 6 in Nominal Inside Dia., 6 3/16 in Nominal Outside Dia., 90 Shore A, Black, 2 PK O-Ring: 66 mm Nominal Inside Dia., 70 mm Nominal Outside Dia., 70 mm Actual Outside Dia., 5 PK O-Ring: 4.5 mm Nominal Inside Dia., 7.5 mm Nominal Outside Dia., 7.5 mm Actual Outside Dia., 50 PK O-Ring: 357, 5 1/2 in Nominal Inside Dia., 5 7/8 in Nominal Outside Dia., 90 Shore A, Black, 2 PK O-Ring: 112, 1/2 in Nominal Inside Dia., 11/16 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 147, 2 11/16 in Nominal Inside Dia., 2 7/8 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 009, 7/32 in Nominal Inside Dia., 11/32 in Nominal Outside Dia., 90 Shore A, Black, 25 PK O-Ring: 63 mm Nominal Inside Dia., 67 mm Nominal Outside Dia., 67 mm Actual Outside Dia., 25 PK O-Ring: 214, 1 in Nominal Inside Dia., 1 1/4 in Nominal Outside Dia., 75 Shore A, Brown, 25 PK O-Ring: 45 mm Nominal Inside Dia., 49 mm Nominal Outside Dia., 49 mm Actual Outside Dia., Red, 10 PK O-Ring: 112, 1/2 in Nominal Inside Dia., 11/16 in Nominal Outside Dia., 70 Shore A, Red, 10 PK O-Ring: 221, 1 7/16 in Nominal Inside Dia., 1 11/16 in Nominal Outside Dia., 75 Shore A, Black, 5 PK ◀◀ ◀ ▶ ▶▶
