Tyco Electronics Corporation
300 Constitutional Drive
Menlo Park, CA 94025 USA
No: C-6111
Rev: G
Date: November 5, 1993
Page: 34 of 35
If this document is printed it becomes uncontrolled. Check for the latest revision.
4.5.35 Insert Flexure (see 3.6.33). Unterminated pin and socket removable inserts shall be
tested in accordance with ASTM D 790, Method 1, Procedure A. The radius of the nose
shall be 0.125 inch (3 mm), and a groove shall be machined in the nose to
accommodate the keyway on the insert. The radius of the supports shall be 0.125 inch
(3 mm), and the span between the supports shall be 1.5 inch (38 mm) for 2-inch inserts
and 0.75 inch (19 mm) for 1-inch inserts. The force shall be applied to the keying side
of the insert at the rate specified for the nominal specimen depth, until a strain of 5
percent is attained for MTC100 inserts, or 2.5 percent for MTC50 inserts. After
deflection, the insert shall be examined under 10X magnification for evidence of
cracking or breaking.
4.5.36 Removable Insert Abuse (see 3.6.34). Connectors with removable inserts shall be
subjected to the tests listed below. A different specimen shall be used for each test.
Should a removal tool become damaged during testing, it shall be replaced. Failure of a
tool shall not constitute a test failure.
4.5.36.1 Removal Tool Rotation. Inserts of each polarization and contact type shall be tested.
Inserts shall be removed while torque is applied to the removal tool. The insert shall
then be reinserted. These steps shall be repeated ten times on each insert.
4.5.36.2 Removal Tool Thrust. Inserts of each polarization and contact type shall be tested. The
applicable insert removal tool shall be inserted as if to remove the insert, and an axial
load of 10 lbf (44 N) shall be applied to the tool. The tool shall then be removed along
with the insert.
4.5.37 Retention System Fluid Resistance (see 3.6.35). Unmated connectors shall be
immersed for 20 hours at room temperature in the fluids specified below, using a
different connector for each fluid. Connectors shall be removed from fluids and
allowed to drain for 4 hours. Insert retention shall then be tested as specified in 4.5.11.
Test fluids:
a. Monsanto low density aviation hydraulic test fluid.
b. MIL-H-5606 hydraulic fluid.
c. MIL-L-23699 lubricating oil.
d. Methyl ethyl ketone per TT-M-261.
e. Alkaline detergent, pH 10.0 to 0.5.
f. Aviation turbine fuel, type Jet A.
g. MIL-T-5624 fuel, type JP-4.
h. One part by volume of isopropyl alcohol per TT-1-735, Grade A or B, mixed
with three parts mineral spirits per TT-T-291, Grade 1 or P-D-680, Type 2.
i. Anti-icing fluid, composition by weight: 66.0% ethylene glycol per MIL-E-
9500, Grade A; 22.0% propylene glycol per MIL-P-83800, industrial grade;
10.0% water; 0.90% dibasic potassium phosphate; 0.65% sodium di-(2-
ethylhexyl) sulfosuccinate (100% active); 0.45% benzotriazole.
