Harbor Seal Inc. Designs, engineers, manufactures mechanical seals that are employed in rotary fluid handling equipment such as pumps, compressors, mixers, agitators, rotary joints. http://www.harborsealinc.com/

Hart Industries International Manufacture 'O' ring union joints with various elastomers. http://www.hartindustries.com/

Harwal Oil Seals Distributes oil seals, V-rings, axial seals, end caps, ptfe seals. Seal designs offered with stainless springs. http://www.harwal.com

Has-Mor Industries, Inc. Manufacturer of fep and pfa encapsulated 'O' rings, including solid and hollow core, square cross sections and encapsulated cord in custom shapes and sizes. http://www.has-mor.com

Hawleys Engineering Solutions Supplies sealing products including gasket material, gland packing, mechanical seals and 'O' rings. http://www.hawleys.com.au

Heat Exchanger Products Corporation Manufactures silicone condenser tube plugs for the nuclear, fossil, pulp & paper, petro-chemical industries. http://www.hepcoplugs.com

Hecker Werke GmbH + Co. KG Seals for hydraulic and pneumatic systems. Rubber materials for sealing applications at low compressions and also with the ability to seal at temperatures of 250 deg. C over long time periods. http://www.heckerwerke.de/

Hercules Hydraulics, Inc. Imperial and metric sized hydraulic and pneumatic seals, complete repair kits. http://www.herchyd.com

Honeycrown Ltd. Lathe cut rubber washers, sealing rings, flat washers and tube rings made from nitrile, epdm, neoprene, viton, sbr, silicone, polyurethane and other elastomers. http://www.honeycrown.co.uk

Hsiang Sang Carbon Enterprise Specialty manufacturer of carbon and graphite mechanical seals. http://www.hsiangsang.com.tw

Hydro-Ergoseal, Inc. Manufacturer of mechanical seals for industrial, marine and aircraft applications. http://www.ergoseal.com

Hypax Pte Ltd Distributors of 'O' rings, bonded seals, hydraulic and pneumatic seals. Standard materials include nitrile, fkm, and silicone. http://www.hypax.com.sg/

IGS Industrial Gasket and Shim Manufactures custom shims, gaskets, laser cutting, alignments shims, high temperature sealants, rotary seals, and expansion joints. http://www.igscorp.com/

Independent Sealing Distributors International association of distributors involved in all aspects of the fluid sealing industry. http://www.isd.org

Indupaq Manufactures gaskets, braided packings and mechanical seals. http://www.indupaq.com

Industrial Plastics and Machine, Inc. Carbon, moly and graphite filled ptfe products, custom machining of seals and gaskets. http://www.indplastics.com

Industrial Seal, Inc. Hydraulic seals, 'O' rings, mechanical packing, custom rubber products. http://www.industrialseal.com

Interface Solutions Manufacturer of gasket and sealing solutions. Offering, Select-a-Seal, a sealing system that utilizes technology to create one gasket with three sealing barriers. http://www.sealinfo.com

International Track Systems Molded and extruded railroad rubber supplies for transportation industry. Plywood and truck body builders supplies. http://www.itsrailroadrubber.com

Interstate Gasket Co., Inc. Fabrication and precision die-cut components for industry. http://www.interstate-gasket.com