General Information and Specifications
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31211015 6036, 6042, 8042, 10042, 10054
a. NPTF Pipe Thread
TYPE/FITTING IDENTIFICATION
Turns From Finger Tight
(TFFT)**
Material Dash Size
Thread Size
ØA*
(UNF) (in)
(mm)
STEEL, ALUMINUM, OR
BRASS FITTINGS
WITH STEEL,
ALUMINUM, OR
BRASS
MATING
COMPONENTS
2 1/8 - 27 0.40 10.24 2 to 3
4 1/4 - 18 0.54 13.61 2 to 3
6 3/8 - 18 0.67 17.05 2 to 3
8 1/2 - 14 0.84 21.22 2 to 3
12 3/4 - 14 1.05 26.56 2 to 3
16 1 - 11 1/2 1.31 33.22 1.5 to 2.5
20 1 1/4 - 11 1/2 1.65 41.98 1.5 to 2.5
24 1 1/2 - 11 1/2 1.89 48.05 1.5 to 2.5
32 2 - 11 1/2 2.37 60.09 1.5 to 2.5
NOTE:
* ØA thread dimension for reference only.
** Refer to Section 2.9.15, “FFWR and TFFT Methods,” for TFFT procedure requirements.