Hercules Products

Filter Vent Plugs are used to allow air to pass in and out of the non-pressurized end of a single acting cylinder.

U18-1.62-25B Is a 3 Ft / Sec 0 To 5,000 PSI 95A Urethane U-Seal. Measuring 1-5/8” I.D. X 2” O.D. X3/16” C.S. Inch with a temperature range of -65 Degree F to +220 Degree F .

U25-1.75-37B Is a 3 Ft / Sec 0 To 5,000 PSI 95A Urethane U-Seal. Measuring 1-3/4” I.D. X 2-1/4” O.D. X1/4” C.S. Inch with a temperature range of -65 Degree F to +220 Degree F .

U25-2.50-37B Is a 3 Ft / Sec 0 To 5,000 PSI 95A Urethane U-Seal. Measuring 2-1/2” I.D. X 3” O.D. X1/4” C.S. Inch with a temperature range of -65 Degree F to +220 Degree F .

568-336 Is a Black BUNA-N Rubber O-ring. Measuring 2-7/8 I.D.X 3-1/4 O.D. X 0.21 C.S. Inch with a temperature range of -40°F – 240°F. Available in quantities of 10.

568-210-90D Is a Black BUNA-N Rubber O-ring. Measuring 3/4 I.D.X 1 O.D. X 0.139 C.S. Inch with a temperature range of ‘-40°F – 240°F. Available in quantities of 50.

568-215 Is a Black BUNA-N Rubber O-ring. Measuring 1-1/16 I.D.X 1-5/16 O.D. X 0.139 C.S. Inch with a temperature range of -40°F – 240°F. Available in quantities of 50.

575-220 BACK UP RING 90URE-1.375X1/8-C/S(10)