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TM 1-1500-323-24-2
86. Interfacial Seal. This seal is achieved by insulator
faces meeting when the plug and receptacle are mated.
87. Wire Seal. This seal is accomplished by a multiple
ripple design, exceeding wire sealing requirements of
MIL-C-81703.
88. Insert Retention. Insert retention is accomplished
by a hard plastic wafer firmly locked into a groove in
the shell and a strong adhesive bond between the insert
and shell.
89. Keying. Keying is used in shell-enclosed connectors
to obtain polarization, which ensures correct location
when mating a connector (Figure 11).
Figure 9. MIL-C-81703 Series 3 Typical Connector
90. CONTACTS. Contacts are designed to prevent
damage to contact retention device or sealing member
77. DESIGN AND CONSTRUCTION. Connectors and
during insertion or removal of contacts.
accessories are designed and constructed to withstand
normal handling incidental to installation and
91. Fixed Contacts. Contacts in some hermetically sealed
maintenance.
receptacles are fixed non-removable, and solderable, or
feed through.
78. Crimp Snap-in Contacts. Snap-in contacts designed
to AS39029 can be crimped with a standard M22520/1
92. Crimp Removable Contacts. Crimp removable
crimp tool.
contacts may be used with all environment resisting
classes of connectors.
79. Closed-Entry Socket Contacts. These contacts
eliminate damage from abuse by test probes and help to
93. Contact Availability. Crimp contacts are supplied
correct any misaligned pins during engagement.
with each connector unit package and consist of a full
complement plus one spare per size for connectors of 26
80. Contact Insertion. Insertion is accomplished from
contacts or less. Connectors with more than 26 contacts
rear of connector. When contact is fully inserted, the
will have two spares of each size used. Contacts may
clip tines snap securely behind contact shoulders.
also be ordered in individual quantities when necessary.
81. Contact Extraction. Extraction is accomplished with
94. CONTACT APPLICATION. Contacts used for Series
the use of a removal tool.
3 connectors are manufactured in accordance with
AS39029. The contact part number breakdown is
82. Contact Retaining Clip. The contact retaining clip is
illustrated (Figure 12). The Basic Identification Number
completely encased in a tough plastic wafer to protect
(BIN) or last three digits of contact part number, matches
clip from damage.
standard resistor color code (Figure 13).
83. Moisture Sealing. Complete sealing is achieved by
95. POWER CONTACTS. Power contacts are used to
combining four seals; shell, peripheral, interfacial, and
connect single conductor wire through connectors. The
wire seal.
power contacts range from size 12 through 20 and are of
crimp, rear release design. Contacts are listed by size.
84. Shell Seal. This seal is effected when plug shell
Match the required size to connector application, wire
pushes against sealing ring in receptacle when
gage, and composition. Socket and pin contact part
connectors are mated.
numbers are listed along with corresponding color
bands (Table 4).
85. Peripheral Seal. This seal is around the edge of pin
insulator and designed so that when mating connector,
tension is put on seal and greatly reduces compression
set.
