Needle Gauge Chart

Our needle gauge chart shows the dimensions of thinwall and regular gauges. To view our full line of needles, click here

Gauge Wall Nominal OD Nominal ID
12 Regular .109" .085"
13 Regular .095" .071"
14 Regular .083" .063"
14 Thinwall .083" .067"
15 Regular .072" .054"
15 Thinwall .072" .060"
16 Regular .065" .047"
16 Thinwall .065" .053"
17 Regular .058" .042"
18 Thinwall .050" .033"
18 Thinwall .050" .038"
19 Regular .042" .027"
19 Thinwall .042" .032"
20 Regular .036" .024"
20 Thinwall .036" .026"
21 Regular .032" .020"
21 Thinwall .032" .023"
22 Regular .028" .016"
22 Thinwall .028" .020"
23 Regular .025" .013"
23 Thinwall .025" .017"
24 Regular .022" .012"
25 Regular .020" .010"
25 Thinwall .020" .012"
27 Regular .016" .008"
30 Regular .012" .006"
Notes:
Thinwall gauges used for disposable products are reference dimensions.
Regular wall tolerances can be found at www.americantube.com
General hypodermic tubing specifications can be found at www.astm.org