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Pitch diameter, NOT GO, HI, and LO functional diameters

Pitch diameter, NOT GO, HI, and LO functional diameters Per ASME B1.7-2006 Definitions [ back to main page ]

Pitch diameter, NOT GO, HI, and LO functional diameters: the pitch diameters of the enveloping threads of perfect pitch, lead, and flank angles, having reduced depth of engagement and reduced length of engagement as compared to the “GO” functional diameter. Design pitch diameter of the enveloping thread is equal to that of the product minimum material limit. NOT GO, HI, and LO thread gages are used to inspect / evaluate NOT GO, HI, and LO functional diameters.

 

Original Posting: 3/20/2012
Last Revision:
Error corrections in, or comments about, the above data can be sent to: gageguy@gagecrib.com

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