Miniature orifice restrictor
The 156 Lee Jet single orifice restrictor has 0.156 in. diameter and weighs just 0.7 g. They come in 34 standard Lohm (liquid ohm) rates from 3000 to 30,000 Lohms. They are bi-directionally flow tested for accuracy. Maximum working pressure is 3000 psid. Nominal screen holes range from 0.008 to 0.004 in.
The Lee Co.,