Used to insulate a screw, shaft, rivet
or wire from a chassis (panel). Used as a
bushing. ______________________________________________ ______________________________________________
Fiber 5604 Low cost Good mechanical properties Fair electrical
insulator (150-250 v/mil) Not recommended for humid
environments ______________________________________________ ______________________________________________
Kel-F 5609 Very expensive Good electrical insulator (530 v/mil) Fair
mechanical properties Relatively high temperature
resistance Extremely low water absorption
rate ______________________________________________ ______________________________________________
Nylon 5607 Good electrical insulator (385 v/mil) High strength Good
anti -frictional properties Heat resistant to
300ºF ______________________________________________ ______________________________________________
Phenolic (LE)
5605 Higher fabrication cost than nylon or
fibre Fair electrical insulator (225 v/mil) Good cold flow
resistance Fair water absorption rate Relatively hard material
surface ______________________________________________ ______________________________________________
Teflon 5608 Good electrical insulator (480 v/mil) Excellent chemical and
corrosion resistance High temperature resistance Very low water
absorption rate Excellent anti-frictional
properties |
 |
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| Insulating a screw or solder lug from a
chissis. |
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| To bush and insulate a metal tube (sleve) from a
plate. |
 |
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| Shoulder washers insulate transistor from screw and
chassis. |
|