HIC Plug Mil-I-26860 Meets SAE AS26860 Type II, Mil-I-26860 Type II TA350 Humidity Indicator Plug – a zinc-plated brass Humidity Indicator Plug that is certified to MIL-I-26860 military standards.  It may be installed in a rigid container through a 1.05 in. (26 mm) diameter hole. Standard TA350-40 is furnished with a 40% humidity indicator disc. This disc will change from blue to pink when the interior humidity of the container has reached 40%.  This HIC plug is ideal for monitoring interior conditions without having to open and reseal the package. Also available for mounting in a 3/4-14 straight pipe threaded boss as TA351 Type I. Has gasket, but no washer or nut. NSN # 6685-01-081-7036. Weight: 0.16 lbs. (73 grams) TA350 is appropriate for use on NEMA 1, 2, 3, 3R, 3S, 4, 5, 6, 12, 12K, and 13 enclosures, as well as IP66/IP67 enclosures. This item may also be appropriate for use on other NEMA or IP enclosures, depending upon the application. Contact us for more information. Humidity Indicator Plugs TA350 drawing