G 1" Hexagon Oil Liquid Indicator Brass Bulls Eye Oil Level Sight Glass


Quick Details

Place of Origin:

Zhejiang, China

Brand Name:


Gearing Arrangement:


Output Torque:


Applicable Industries:

Manufacturing Plant, Machinery Repair Shops, Farms, Home Use, Retail, Construction works, speed reducer




male NPT thread


1/8" to 2"


Natural Glass,Tempered Glass and Borosilicate Glass

Glass thickness:






Resist Temperature Range:

-30'C to 120'C

Pressure Range:

5-10 Bar(0.5MPa to 1 MPa)


OEM and ODM business

Supply Ability

Supply Ability:
40000 Piece/Pieces per Month

Packaging & Delivery

Packaging Details
Inner boxes,Cartons,Pallets.
Picture Example:

Lead Time
Quantity(Pieces) 1 – 50000 >50000
Est. Time(days) 45 To be negotiated

Online Customization

Video Description

Product Description

Brass sight glass:

Material Body: Brass

O-Ring: Viton,FKM,NBR, Aramid gasket and Copper seal

Glass Thickness: 2mm to 8 mm

Reflectors: Stainless Steel 304 Reflector

(Any type you can chose with reflector or without Reflector, You also can add float ball.)

Glass Type: Natural Glass,Tempered Glass and Borosilicate Glass

Resist Temperature Range:-30'C to 120'C

Pressure Range: 5-10 Bar(0.5MPa to 1 MPa).

Thread type:NPT,NPTF,UNC,UNF,Metric and BSP(G thread)

Size: Below you will get the size you wanted.Another size is okay.OEM are welcome.

Usage: Pump,Oil Receivers,Gearboxes,Speed Reducer,Compressor and Power Transmission.

Product Name

Brass oil sight glass






NPT, BSP (G thread), Metric thread.


Natural Glass,Tempered Glass and Borosilicate Glass.

Pressure Range

5-10 Bar(0.5MPa to 1 MPa).

Resist Temperature Range

-30'C to 120'C


Pump,Oil Receivers,Gearboxes,Speed Reducer,Compressor and Power Transmission.

Products Show

Our Other Products

 Domed shaped brass signt glass

 Steel sight glass

 Hexagon brass sight glass

Our Company


Packing & Delivery

Packing Details  : inner boxes, cartons, pallets.

1. Inner boxes

2. Cartons

3. Pallets

 Fused sight glass

  Steel oil drain plugs

  Brass sight glass

Company information

Grand Hardware Manufacturing Co., Ltd
& Yuhuan Yize Machinery Factory is a precision metal parts supplier.
–Professional OEM metal parts supplier in many categories.such as CNC machining parts,CNC turning parts,precision metal parts,stamping parts and punching parts.
–Especially professional in oil level sight glass,fused windows sights,breather vent plugs,wheel bolts,hydraulic adapters and hydraulic steel oil drain plugs.

–We focus on the below business:

1.High gloss cutting drill, high speed CNC and digital control processing.

2. Both metal and plastic piece parts laser radium carving.

3. Exterior parts stamping, processing and other piece parts machining.

4. Pieces of exterior anoding, wiring drawing and printing and other surface treatments

5.+/-0.01mm tolerance will be controlled.

–We supply the metal parts in compliance with customized designs by material of:
Stainless steel, mid steel, Aluminum alloy, Copper and brass, Bronze, Hardened metal.
–Finish parts surface treatment: Zinc plating, Zinc-Nickel plating, Anodising and Etc.
–We can realize the customers' idea and design perfectly by our experienced work and keep confidentially meanwhile.
–Customized drawing are welcome.
–OEM metal work is welcome.
–Both the delivery time and service will exceed your expectation.
Any more question,Please contact us for more details about our production capacity which you concern!
Our job is to make your job easier! 

Other products

Breather vent plugs

Material: Brass and Aluminum
Finish: Natural and Nickel Plated
Thread Type: BSP,Metric,NPT
Size: Any Size OEM are welcome.
Work Pressure: 0.005 MPa to M 0.03 MPa
Tempture Range: -30 Cent degree to 130 Cent degree.

Steel oil drain plugs

Material: Carbon Steel and Al 6061.

Finish: Steel Zinc plated,Aluminum Natural and Aluminum Anodizing.
Thread type: Metric thread,BSP thread and UNC ect.

Magnetic drain plug

Material: Steel and Aluminum
Magnet Material: NdFeb magnets and Ferrite magnets
Finish: Steel Zinc plated, Aluminum Natural and Aluminum Oxidized Color.
Size and Thread: Metric thread,NPT Thread and BSP thread. OEM is welcome.


Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time?

A: Generally it is 15 days if the goods are in stock. or it is 45 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, please feel free to contact us as below: