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NPT PIPE THREADS - Vermont Gage
Class 1 Threads - “Acceptability is determined by coordinated use of L1 & L2 gages for external product threads and L1 & L3 internal product threads. Crest and root truncation is generally considered to be controlled by tooling or other means”. ANSI/ASME B1.20.5 Class 2 Threads - Same as above, “however, inspection of root
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BRINGING YOU THE Q U A L I T Y Y O U D E S E R V E
vermontgage.comA Division of Vermont Precision Tools, Inc. Table of Contents PLAIN PLUG GAGES Class ZZ Standards (Steel, Black Guard™) 2-7 Class X Standards (Stocked in Steel) 8-9 Custom Gage Sets 10-11
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