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Size (A)
M 16 , M 20 , M 25
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External Diameter (B)
25.4 , 32 , 40
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Minimum Thickness
3.3 , 3.7 , 3.7
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Cat. #(GI)
SWM16GS , SWM20GS and SWM25GS
Speedwell serrated washer can be fitted internally to the equipment and before a locknut as an anti-vibration device to prevent the cable gland or other cable entry device and locknut arrangement from accidently loosening in service.