Downloaded from https://www.everyspec.com MIL-STD-1311D METHOD 1119 (Subminiature flat-press base) 1. Procedure. a. Secure the tube with its longitudinal axis in a vertical position. b. Attach one 32 ± 2 ounce weight to the end of three adjacent leads (one shall be an outside lead). c. Rotate the tube in a 90 degree smooth arc of at least 2 seconds duration. (The unweighted leads shall then be at right angles to the weighted leads.) d. Remove the weight and examine, without magnification, for glass damage at the glass-to-lead seal areas of the base. 2. Acceptance criteria. Upon completion of this test, there shall be no evidence of fractured or chipped glass at the base. NOTE:
This is a destructive test; electrical rejects may be used for this test. GLASS-T0-LEAD SEAL STRAIN METHOD 1119 1119-1 19 April 1968