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 ” 3-23 1-800-526-4182 • 732-286-1800 (NJ) • FAX: 732-244-8843 • Web site: www.heyco.com Quick Specs Heyco® Strain Relief Mounting Hole Plugs Standardize Panel Design and Fill Unused Holes • Closes unused strain relief mounting holes or Double “D” holes punched or molded with two opposing flats. • Convex, matte finish head tapers to a thin edge. • Locks firmly in panels up to .125½ (3,2 mm) thick. • Quick and easy installation. • Use our rectangular plugs #1890 and #1892 to fill unneeded square Lockit™ Strain Relief mounting holes. PANEL DIMENSIONS PART NO. DESCRIPTION PART DIMENSIONS D C A B Maximum Long Short Black Head Overall Thickness Axis Axis Diameter Height in. mm. in. mm. in. mm. in. mm. in. mm. .125 3,2 .437 11,1 .390 9,9 2488 DD-437-390 .531 13,5 .406 10,3 .125 3,2 .500 12,7 .445 11,3 2491 DD-500-445 .578 14,7 .406 10,3 .125 3,2 .562 14,3 .530 13,5 2494 DD-562-530 .656 16,7 .406 10,3 .125 3,2 .625 15,9 .550 14,0 2497 DD-625-550 .728 18,5 .406 10,3 .125 3,2 .750 19,0 .625 15,9 2503 DD-750-625 .921 23,4 .406 10,3 .125 3,2 .875 22,2 .770 19,6 2509 DD-875-770 1.016 25,8 .453 11,5 .157 4,0 .690 17,5 .690 17,5 1892 RP-175-175 .830 21,1 .467 11,9 .099 2,5 .512 13,0 .453 11,5 1890 RP-115-130* .580 14,7 .403 10,2 Standard color black. Consult Heyco for white and other colors. *Rectangular plug to fill unneeded Lockit Strain Relief Mounting holes/not UL or CSA. Locking finger steps designed in fractional increments. Material 6/6 Nylon Certifications Recognized under the Component Program of Underwriters’ Laboratories File E15331 Certified by the Canadian Standards Association File LR8919 Flammability Rating 94V-2 Material Temperature Index 257°F (125°C)–Maximum temperature on part not to exceed 221°F (105°C) B C D A r= D 2 MOUNTING HOLE MOUNTING HOLE D C B A 1890