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Sight Glasses, Oil Windows, and Oil Sight Glasses by Winco

Sight glasses, also known as oil windows, provide a clear view through large sight windows into the interior of gearboxes and containers, allowing the observation and reading of fluid levels or operational conditions.
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GN 743 Aluminum Fluid Sight Glasses, with Float Glass, Resistant up to 212 °F Type: A - With reflector, plain finish GN 743 Aluminum Fluid Sight Glasses, with Float Glass, Resistant up to 212 °F Type: AS - With reflector, black anodized finish GN 743 Aluminum Fluid Sight Glasses, with Float Glass, Resistant up to 212 °F Type: B - Without reflector, plain finish GN 743 Aluminum Fluid Sight Glasses, with Float Glass, Resistant up to 212 °F Type: BS - Without reflector, black anodized finish
GN 743 Aluminum Fluid Sight Glasses, with Float Glass, Resistant up to 212 °F
GN 743.1 Aluminum Fluid Sight Glasses, with ESG Safety Glass, Resistant up to 356 °F Type: A - With reflector, plain finish GN 743.1 Aluminum Fluid Sight Glasses, with ESG Safety Glass, Resistant up to 356 °F Type: AS - With reflector, black anodized finish GN 743.1 Aluminum Fluid Sight Glasses, with ESG Safety Glass, Resistant up to 356 °F Type: B - Without reflector, plain finish GN 743.1 Aluminum Fluid Sight Glasses, with ESG Safety Glass, Resistant up to 356 °F Type: BS - Without reflector, black anodized finish
GN 743.1 Aluminum Fluid Sight Glasses, with ESG Safety Glass, Resistant up to 356 °F
GN 743.2 Brass Fluid Sight Glasses, with Float Glass Type: A - With reflector GN 743.2 Brass Fluid Sight Glasses, with Float Glass Type: B - Without reflector
GN 743.2 Brass Fluid Sight Glasses, with Float Glass
GN 743.3 Brass Fluid Sight Glasses, with ESG Safety Glass Type: A - With reflector GN 743.3 Brass Fluid Sight Glasses, with ESG Safety Glass Type: B - Without reflector
GN 743.3 Brass Fluid Sight Glasses, with ESG Safety Glass
GN 743.4 Stainless Steel Fluid Sight Glasses, with Float Glass Type: A - With reflector GN 743.4 Stainless Steel Fluid Sight Glasses, with Float Glass Type: B - Without reflector
GN 743.4 Stainless Steel Fluid Sight Glasses, with Float Glass
GN 743.5 Stainless Steel Fluid Sight Glasses, with ESG Safety Glass Type: A - With reflector GN 743.5 Stainless Steel Fluid Sight Glasses, with ESG Safety Glass Type: B - Without reflector
GN 743.5 Stainless Steel Fluid Sight Glasses, with ESG Safety Glass
GN 743.10 Stainless Steel AISI 316L Fluid Sight Glasses, with ESG Safety Glass, Resistant up to 356 °F Type: AN - With stainless steel reflector GN 743.10 Stainless Steel AISI 316L Fluid Sight Glasses, with ESG Safety Glass, Resistant up to 356 °F Type: AK - With plastic reflector GN 743.10 Stainless Steel AISI 316L Fluid Sight Glasses, with ESG Safety Glass, Resistant up to 356 °F Type: B - Without reflector
GN 743.10 Stainless Steel AISI 316L Fluid Sight Glasses, with ESG Safety Glass, Resistant up to 356 °F
GN 7440 Stainless Steel AISI 316L Fluid Sight Glasses, Metal-Fused Identification no.: 2 - Seal FPM (Viton<sup>®</sup>) GN 7440 Stainless Steel AISI 316L Fluid Sight Glasses, Metal-Fused Identification no.: 3 - Seal copper
GN 7440 Stainless Steel AISI 316L Fluid Sight Glasses, Metal-Fused
GN 743.6 Aluminum Fluid Sight Glasses, with ESG Safety Glass, ATEX Explosion Protective
GN 743.6 Aluminum Fluid Sight Glasses, with ESG Safety Glass, ATEX Explosion Protective
GN 743.7 Brass Fluid Sight Glasses, with Float Glass, with Conical BSPT or NPT Thread Type: A - With reflector GN 743.7 Brass Fluid Sight Glasses, with Float Glass, with Conical BSPT or NPT Thread Type: B - Without reflector
GN 743.7 Brass Fluid Sight Glasses, with Float Glass, with Conical BSPT or NPT Thread
GN 743.8 Brass Fluid Sight Glasses, with ESG Safety Glass, with Conical BSPT or NPT Thread Type: A - With reflector GN 743.8 Brass Fluid Sight Glasses, with ESG Safety Glass, with Conical BSPT or NPT Thread Type: B - Without reflector
GN 743.8 Brass Fluid Sight Glasses, with ESG Safety Glass, with Conical BSPT or NPT Thread
GN 744 Aluminum Fluid Sight Glasses, Sight Glass Plastic Type: A - With prismatic effect (only d<sub>1</sub> = 14 / 18 / 24 mm) GN 744 Aluminum Fluid Sight Glasses, Sight Glass Plastic Type: B - Without reflector (all sizes) GN 744 Aluminum Fluid Sight Glasses, Sight Glass Plastic Type: C - With red marking ring (only d<sub>1</sub> = 11 / 14 / 18 / 24 mm)
GN 744 Aluminum Fluid Sight Glasses, Sight Glass Plastic
EN 541 Crystal Clear Plastic Fluid Sight Glasses Type: A - With reflector EN 541 Crystal Clear Plastic Fluid Sight Glasses Type: B - Without reflector
EN 541 Crystal Clear Plastic Fluid Sight Glasses
EN 541.2 Crystal Clear Plastic Fluid Sight Glasses, with Exposed Seal, with Prismatic Effect
EN 541.2 Crystal Clear Plastic Fluid Sight Glasses, with Exposed Seal, with Prismatic Effect
EN 541.3 Crystal Clear Plastic Fluid Sight Glasses, with Recessed Seal, with Prismatic Effect
EN 541.3 Crystal Clear Plastic Fluid Sight Glasses, with Recessed Seal, with Prismatic Effect
EN 541.5 Plastic Fluid Sight Glasses, with Prismatic Effect, Temperature Resistant up to 302 °F
EN 541.5 Plastic Fluid Sight Glasses, with Prismatic Effect, Temperature Resistant up to 302 °F
EN 541.6 Crystal Clear Plastic Fluid Sight Glasses, ATEX Explosion Protective
EN 541.6 Crystal Clear Plastic Fluid Sight Glasses, ATEX Explosion Protective
TLT Plastic Fluid Sight Glasses
TLT Plastic Fluid Sight Glasses
EN 546 Crystal Clear Plastic Fluid Sight Glasses, Dome-Shaped, without Marking Ring
EN 546 Crystal Clear Plastic Fluid Sight Glasses, Dome-Shaped, without Marking Ring
EN 546.1 Crystal Clear Plastic Fluid Sight Glasses, Dome-Shaped, with Marking Ring
EN 546.1 Crystal Clear Plastic Fluid Sight Glasses, Dome-Shaped, with Marking Ring
EN 546.6 Crystal Clear Plastic Fluid Sight Glasses, Dome-Shaped, ATEX Explosion Protective
EN 546.6 Crystal Clear Plastic Fluid Sight Glasses, Dome-Shaped, ATEX Explosion Protective
EN 543.2 Plastic Fluid Sight Glasses Type: A - With reflector<br />Color: RT - Red EN 543.2 Plastic Fluid Sight Glasses Type: A - With reflector<br />Color: SW - Black EN 543.2 Plastic Fluid Sight Glasses Type: B - Without reflector<br />Color: RT - Red EN 543.2 Plastic Fluid Sight Glasses Type: B - Without reflector<br />Color: SW - Black
EN 543.2 Plastic Fluid Sight Glasses
EN 543.3 Plastic Fluid Sight Glasses, with Prismatic Effect
EN 543.3 Plastic Fluid Sight Glasses, with Prismatic Effect
EN 543.4 Plastic Fluid Sight Glasses, with Prismatic Effect
EN 543.4 Plastic Fluid Sight Glasses, with Prismatic Effect
EN 543.6 Plastic Fluid Sight Glasses, ATEX Explosion Protective Type: B - Without reflector EN 543.6 Plastic Fluid Sight Glasses, ATEX Explosion Protective Type: A - With reflector
EN 543.6 Plastic Fluid Sight Glasses, ATEX Explosion Protective
EN 542 Crystal Clear Plastic Fluid Sight Glasses, Push-Fit Type Type: A - With reflector EN 542 Crystal Clear Plastic Fluid Sight Glasses, Push-Fit Type Type: B - Without reflector
EN 542 Crystal Clear Plastic Fluid Sight Glasses, Push-Fit Type
EN 545.2 Plastic Fluid Sight Glasses, Push-Fit Type Type: A - With reflector EN 545.2 Plastic Fluid Sight Glasses, Push-Fit Type Type: B - Without reflector
EN 545.2 Plastic Fluid Sight Glasses, Push-Fit Type
GN 537 Aluminum / Plexiglas Fluid Sight Glasses, without Thread Type: B - With fluid level marks GN 537 Aluminum / Plexiglas Fluid Sight Glasses, without Thread Type: A - Without fluid level marks
GN 537 Aluminum / Plexiglas Fluid Sight Glasses, without Thread
GN 537.1 Steel Pin Keys, for Installation of Fluid Sight Glasses GN 537
GN 537.1 Steel Pin Keys, for Installation of Fluid Sight Glasses GN 537
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