Push-Fit Oil Windows

For trouble-free visual inspection
Observation windows are used to provide a clear view of gears, lube level, couplings, chains or switches in sealed or oil immersed areas. Observation Windows can also be called oil windows, oil sight glasses or circulation windows.

  • One-step fixation, self-locking, no thread required, no machine wall reinforcement needed
  • Solid, shock-resistant transparent acrylic
  • Withstands temperatures up to 158° (70° C)
  • Absolutely oil tight, withstands internal pressures up to 8.8 psi (or higher with optional guard ring)
  • NBR seals
  • Removable film protects polished face from damage during delivery and assembly
  • White reflectors are furnished with all windows up to 8-inch diameter and are removable if not desired.

Observation Window Dimensions

ImageNamePart NumberOverall DiameterHousing Bore DiameterCDE (min)Reflector Diameter (F)Ghf:att:pa_overall-diameterhf:att:pa_housing-bore-diameterhf:att:pa_chf:att:pa_dhf:att:pa_e-minhf:att:pa_reflector-diameter-fhf:att:pa_g
Push-Fit Oil Windows
Push-Fit Oil Window 1" w/ Reflector - 14200142001", 25mm7/8", 22.2mm11/32", 8.5mm7mm, 9/32"5mm, 7/32"3/4"10mm, 13/32"1 25mm7-8 22-2mm11-32 8-5mm7mm 9-325mm 7-323-410mm 13-32
Push-Fit Oil Windows
Push-Fit Oil Window 1-3/8" w/ Reflector - 20200202001-3/8"1-1/4"11/32"9/32"7/32"1-1/8"13/32"1-3-81-1-411-329-327-321-1-813-32
Push-Fit Oil Windows
Push-Fit Oil Window 35mm w/ Reflector - 212002120035mm32mm8.5mm7mm5mm28mm10mm35mm32mm8-5mm7mm5mm28mm10mm
Push-Fit Oil Windows
Push-Fit Oil Window 1-5/8" w/ Reflector - 24200242001-5/8", 41mm1-1/2", 38.1mm11/32", 8.5mm7mm, 9/32"5mm, 7/32"1-1/8", 28mm10mm, 13/32"1-5-8 41mm1-1-2 38-1mm11-32 8-5mm7mm 9-325mm 7-321-1-8 28mm10mm 13-32
Push-Fit Oil Windows
Push-Fit Oil Window 2" w/ Reflector - 32200322002-1/8", 53mm1-31/32", 50mm13/32", 10mm11/32", 8.5mm1/4", 6mm1-1/8", 28mm10mm, 13/32"2-1-8 53mm1-31-32 50mm13-32 10mm11-32 8-5mm1-4 6mm1-1-8 28mm10mm 13-32
Push-Fit Oil Windows
Push-Fit Oil Window 3" w/ Reflector - 48200482003-1/16", 76mm2-59/64", 75mm13/32", 10mm11/32", 8.5mm1/4", 6mm1-1/8", 28mm10mm, 13/32"3-1-16 76mm2-59-64 75mm13-32 10mm11-32 8-5mm1-4 6mm1-1-8 28mm10mm 13-32
Push-Fit Oil Windows
Push-Fit Oil Window 4" w/ Reflector - 64200642004-1/16", 103mm3-5/16", 100mm13/32", 10mm11/32", 8.5mm1/4", 6mm1-1/8", 28mm10mm, 13/32"4-1-16 103mm3-5-16 100mm13-32 10mm11-32 8-5mm1-4 6mm1-1-8 28mm10mm 13-32
Push-Fit Oil Windows
Push-Fit Oil Window 6" w/ Reflector - 95200952006", 153mm5-29/32", 150mm13/32", 10mm11/32", 8.5mm1/4", 6mm1-1/8", 28mm10mm, 13/32"6 153mm5-29-32 150mm13-32 10mm11-32 8-5mm1-4 6mm1-1-8 28mm10mm 13-32
Push-Fit Oil Windows
Push-Fit Oil Window 8" - 96100961007-63/64", 203mm7-7/8", 200mm13/32", 10mm11/32", 8.5mm1/4", 6mmN/AN/A7-63-64 203mm7-7-8 200mm13-32 10mm11-32 8-5mm1-4 6mmn-an-a
Push-Fit Oil Windows
Push-Fit Oil Window 10" - 97100971009-61/64", 253mm9-27/32", 250mm1/2", 12mm10mm, 13/32"10/32", 8mmN/AN/A9-61-64 253mm9-27-32 250mm1-2 12mm10mm 13-3210-32 8mmn-an-a
Push-Fit Oil Windows
Push-Fit Oil Window 12" - 981009810011-59/64", 303mm11-57/64", 300mm15mm, 20/32"1/2", 12mm10mm, 13/32"N/AN/A11-59-64 303mm11-57-64 300mm15mm 20-321-2 12mm10mm 13-32n-an-a