The conical thread of gn 743.8 fluid level sight glasses makes a metallic seal possible. When the male thread is tightened, it wedges itself within the appropriate female thread. At the reference level "a," the male thread has the same thread diameter as the female thread, so that it can be fastened in by hand.
- The secure tightening by means of a tool increases the length of engagement and seals the screw connection
- Additionally a sealant (fibrous or teflon band) is usually used
- The thread is "roughened," so that the sealant does not shift during fastening
- Fluid level sight glasses gn 743.8 can be used on pressurized oil tanks
- Temperature resistant to 356° f (180° c).
Product details
- Male thread 3/8" npt
- Female thread 3/8" npt
- Reflector material Heat-resistant technopolymer plastic (polysulfon)
- O-ring material Fpm rubber (viton®)
- Country of origin Import
- Sight glass body material Brass
- Brand J.W
- Winco
- Series Gn743.8
- Sight glass material Esg glass
- Manufacturers part number 6psma
Weights & dimensions
- Diameter .43"
- Useable thread .40"
- Point to point .87"
- Across flats .75" (19mm)
- Thread size 3/8 npt (male/female) in
- Thread length .59 in
- Height .24"
