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: 242, 4 in Nominal Inside Dia., 4 1/4 in Nominal Outside Dia., 75 Shore A, Brown, 5 PK Backup Ring, Contoured: Buna N, For 371, 0.076 in Thick, 0.262 in Radius, 10 PK O-Ring: 23.5 mm Nominal Inside Dia., 28.5 mm Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 212, 7/8 in Nominal Inside Dia., 1 1/8 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 214, 1 in Nominal Inside Dia., 1 1/4 in Nominal Outside Dia., 70 Shore A, Black, X, 100 PK O-Ring: 43.7 mm Nominal Inside Dia., 50.7 mm Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 110, 3/8 in Nominal Inside Dia., 9/16 in Nominal Outside Dia., 70 Shore A, Blue, 5 PK O-Ring Assortment: SAE, Buna N, 436 Pieces, 36 # of Sizes, 90 Shore A O-Ring: 11.3 mm Nominal Inside Dia., 16.1 mm Nominal Outside Dia., 75 Shore A, Black, 25 PK O-Ring: 3.5 mm Nominal Inside Dia., 6.5 mm Nominal Outside Dia., 6.5 mm Actual Outside Dia., 10 PK O-Ring: 426, 4 5/8 in Nominal Inside Dia., 5 1/8 in Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 020, 7/8 in Nominal Inside Dia., 1 in Nominal Outside Dia., 70 Shore A, Natural, 5 PK O-Ring: 13.1 mm Nominal Inside Dia., 16.3 mm Nominal Outside Dia., 70 Shore A, Red, 10 PK O-Ring: 129, 1 9/16 in Nominal Inside Dia., 1 3/4 in Nominal Outside Dia., 90 Shore A, Black, 25 PK O-Ring: 75 mm Nominal Inside Dia., 85 mm Nominal Outside Dia., 85 mm Actual Outside Dia., 5 PK O-Ring: 164.3 mm Nominal Inside Dia., 175.7 mm Nominal Outside Dia., 70 Shore A, Black, 5 PK O-Ring: 4.5 mm Nominal Inside Dia., 6.5 mm Nominal Outside Dia., 6.5 mm Actual Outside Dia., 50 PK O-Ring: 109, 5/16 in Nominal Inside Dia., 1/2 in Nominal Outside Dia., 50 Shore A, Red, 25 PK O-Ring: 019, 13/16 in Nominal Inside Dia., 15/16 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 24 mm Nominal Inside Dia., 30 mm Nominal Outside Dia., 30 mm Actual Outside Dia., Std, 10 PK ◀◀ ◀ ▶ ▶▶
