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Heyco Liquid Tight Fittings Sealing Washers
Sealing Washers

Material: Thermoplastic Elastomer

Flammability Rating: 94V-0

Material Temperature Index: 125°C (257°F)–Max. temperature on part not to exceed 105°C (221°F)

  • For use with Heyco Liquid Tight Fittings and Liquid Tight Cordgrips.
  • Liquid tight, dust tight and oil tight at enclosure.
  • Suitable for wet locations requiring a separate gasket between the box and fitting due to imperfections in the box.
  • Also suitable for other panel or panel sealing applications.
  • Easy to install since washers seal off on the perimeter, not on the connector threads.
  • Special double sealing ridges compensate for minor unevenness at enclosure.
 
Heyco® Sealing Washers
Will Fit These
Electrical Fitting
Trade Sizes-NPT		 Part
Number		 Description Part Dimensions
A
Inside Diameter		 B
Outside Diameter		 C
Thickness
Black in. mm. in. mm. in. mm.
1/4 3258 SW 1/4   .540 13,7   .796 20,2 .125 3,2
3/8 3259 SW 3/8   .670 17,0 1.010 25,6
1/2 3260 SW 1/2   .820 20,8 1.240 31,5
3/4 3261 SW 3/4 1.030 26,2 1.500 38,1 .135 3,4
1 3262 SW 1 1.281 32,5 1.770 45,0 .175 4,4
1-1/4 3264 SW 1-1/4 1.662 42,2 2.160 54,9 .160 4,1