Material Body: Brass O-Ring: Viton/FKM Glass Thickness: 2mm to 3 mm Glass Type:Borosilicate Glass Resist Tempreature Range:-30'C to 180'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 Transimission.

1. Grand Hardware Manufacturing Co.,Ltd
No.546 Zhitang Rd,Chumen Town,Yuhaun County,Taizhou,Zhejiang,China 317605
Tel:+86-576-8744 4973 Fax:+86-576-8832 7473 Web:www.grandmfgcn.com Email:Tonyliu2007@126.com
Domed Hexagon Oil Sight Glass(NPT,BSP & Metric Thread)
Item No. Size(mm) A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) SW(mm) Temperature
GM-HDN12 1/2" NPT 1/2" 15 11 26 19 13 26
With
Borosilica
te Glass
Below Zero
30 to 200
Centigrade
GM-HDN34 3/4" NPT 3/4" 17 11 29 26 15 35
GM-HDN10 1" NPT 1" 20 12 32 26 15 35
GM-HDG12 1/2" G 1/2" 9 11 18 19 13 26
GM-HDG34 3/4" G 3/4" 9 9 18 26 15 35
GM-HDG10 1" G 1" 11 11 22 26 15 38
GM-HDM18 M18 M18x1.5 8 7 17 19 13 26
GM-HDM20 M20 M20x1.5 8 8 17 19 13 26
GM-HDM22 M22 M22x1.5 9 8 17 19 13 27
GM-HDM24 M24 M24x1.5 9 8 17 19 13 28
GM-HDM26 M26 M26x1.5 9 8 17 19 14 30
GM-HDM27 M27 M27x1.5 9 9 18 26 15 35
GM-HDM33 M33 M33x1.5 11 11 22 26 15 38

2. Domed Shaped Oil Sight Glass(BSP & Metric Thread)
Item No. H(mm) A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) SW(mm) Temperature
GM-DCG12 13 G 1/2" 9 8 17 28 14 25
With
Borosilica
te Glass
Below Zero
30 to 70
Centigrade
GM-DCG34 14 G 3/4" 9 9 18 32 19 28
GM-DCG10 15 G 1" 11 11 22 37 26 34
GM-DCM18 13 M18x1.5 8 7 15 27 13 25
GM-DCM20 13 M20x1.5 8 8 17 28 13 25
GM-DCM22 13 M22x1.5 9 8 17 28 13 25
GM-DCM24 13 M24x1.5 9 8 17 29 13 26
GM-DCM26 14 M26x1.5 9 8 17 31 14 28
GM-DCM27 15 M27x1.5 9 9 18 33 19 30
GM-DCM30 15 M30x1.5 10 10 20 36 23 33
GM-DCM33 15 M33x1.5 11 11 22 38 26 34