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: 375, 9 1/2 in Nominal Inside Dia., 9 7/8 in Nominal Outside Dia., 90 Shore A, Black O-Ring: 249, 4 7/8 in Nominal Inside Dia., 1 in Nominal Outside Dia., 90 Shore A, Black, 5 PK O-Ring: 10.6 mm Nominal Inside Dia., 14.2 mm Nominal Outside Dia., 70 Shore A, Black, 25 PK X-Ray and Metal Detectable O-Ring: 012, 3/8 in Nominal Inside Dia., 1/2 in Nominal Outside Dia. Backup Ring, Contoured: Buna N, For 214, 0.05 in Thick, 0.174 in Radius, 100 PK O-Ring: 354.5 mm Nominal Inside Dia., 371.3 mm Nominal Outside Dia., 371.3 mm Actual Outside Dia. O-Ring: 3.7 mm Nominal Inside Dia., 6.9 mm Nominal Outside Dia., 6.9 mm Actual Outside Dia., 50 PK O-Ring: 001-1/2, 1/16 in Nominal Inside Dia., 1/8 in Nominal Outside Dia., 70 Shore A, Black, 100 PK O-Ring: 216, 1 1/8 in Nominal Inside Dia., 1 3/8 in Nominal Outside Dia., 70 Shore A, White, 25 PK O-Ring: 105, 5/32 in Nominal Inside Dia., 11/32 in Nominal Outside Dia., 90 Shore A, Black, 50 PK O-Ring: 42 mm Nominal Inside Dia., 54 mm Nominal Outside Dia., 54 mm Actual Outside Dia., 5 PK O-Ring: 451, 11 in Nominal Inside Dia., 11 1/2 in Nominal Outside Dia., 90 Shore A, Black, Inch O-Ring: 024, 1 1/8 in Nominal Inside Dia., 1 1/4 in Nominal Outside Dia., 75 Shore A, Black, Inch O-Ring: 9 mm Nominal Inside Dia., 14 mm Nominal Outside Dia., 14 mm Actual Outside Dia., 10 PK O-Ring: 115, 11/16 in Nominal Inside Dia., 7/8 in Nominal Outside Dia., 0.88 in Actual Outside Dia. O-Ring: 010, 1/4 in Nominal Inside Dia., 3/8 in Nominal Outside Dia., 70 Shore A, Black, Inch, 25 PK O-Ring: 22 mm Nominal Inside Dia., 24 mm Nominal Outside Dia., 24 mm Actual Outside Dia., 100 PK O-Ring: 14 mm Nominal Inside Dia., 19 mm Nominal Outside Dia., 19 mm Actual Outside Dia., 25 PK O-Ring: 2.4 mm Nominal Inside Dia., 6.2 mm Nominal Outside Dia., 6.2 mm Actual Outside Dia., 50 PK O-Ring: 414, 3 1/8 in Nominal Inside Dia., 3 5/8 in Nominal Outside Dia., 70 Shore A, Red ◀◀ ◀ ▶ ▶▶
