1-800-526-4182 • 732-286-1800 (NJ) • FAX: 732-244-8843 • Web site: www.heyco.com Quick Specs 1-8 Heyco Products, Inc. “ T h e F i r s t N a m e i n W i r e P r o t e c t i o n ” B D C E A SUGGESTED CLEARANCE HOLE FOR NONTHREADED MOUNTING FITS PART NO. DESCRIPTION PART DIMENSIONS CONDUIT/ A B C D E TUBING Black Gray Clearance Max. O.A. Thread Wrenching Wrenching TRADE Hole Length Length Nut Flats SIZE in. mm. in. mm. in. mm. in. mm. in. mm. 1/4 8517 8518 *HFC 1/4 NPT-twist .540 13,7 1.559 39,6 .465 11,8 .200 5,1 .750 19,0 3/8 8487 8488 HFC 3/8 NPT-twist .875 22,2 1.720 43,7 .625 15,9 .200 5,1 1.180 30,0 1/2 8493 8494 HFC 1/2 NPT-twist .875 22,2 1.720 43,7 .625 15,9 .200 5,1 1.180 30,0 3/4 8497 8498 HFC 3/4 NPT-twist 1.109 28,2 1.840 46,7 .625 15,9 .200 5,1 1.370 34,8 Standard colors black and gray. Consult Heyco for other colors. Listed under Underwriters’ Laboratories File E28430. * Recognized under the Component Program of Underwriters’ Laboratories File E121095. • NPT threaded fittings are UL approved for use with Heyco-Flex I & II conduit and tubing. See pages 1-1 and 1-2. • One-piece solution with smooth internal surfaces provides for easier wire routing, protection, and installation. • All nylon construction is resistant to salt water, weak acids, gasoline, alcohol, oil, grease, and common solvents. This feature is not assessed by UL certification and testing. • Easy, permanent assembly: the installer twists the tubing over the connector ferrule, until the tubing clicks into place. It’s that easy! • No tools needed for installation. • Unique locking fingers accommodate various panel thicknesses. • Suitable for a wide array of electrical applications: - Commercial and Industrial HVAC Systems - Motorized Equipment - Enclosed Power Sources - Garage Door Openers - Major Appliances • If using a tapped hole, Teflon® tape is needed on the threads of the connector, for all other applications an O-ring and Locknut are needed to attain liquid tight. • Locknuts not included. To order metal or nylon locknuts separately, see pages 1-11 and 1-12. • Finishing collars to neaten rough cut tubing ends. See page 1-7. Material 6/6 Nylon Certifications See and Listed File Numbers under charts Flammability Rating 94V-2 Material Temperature Index 257°F (125°C)–Maximum temperature on part not to exceed 221°F (105°C) Ingress Protection NPT Threaded style is liquid tight. Consult Heyco for details. Heyco-Flex™ “Quick Twist” Liquid Tight Conduit Fittings Straight-Thru, NPT Hubs For use with Heyco-Flex™ I and II Conduit and Tubing