MIL-DTL-24308G

w/AMENDMENT 2

10

3.4.2 Insert design and construction. Inserts shall be designed with suitable sections and radii such that they will

not readily chip, crack, or break in assembly or in normal service. Inserts shall be molded or bonded with a bond

barrier between all adjacent contacts and outside edge and of one-piece construction, except for IDC. Pin entry

openings on socket insert faces shall be as small as practicable. Socket inserts shall provide adequate protection

against a pin contacting a socket before the mating pair of connectors has been polarized. The inserts shall be so

designed that the inserts cannot be removed from the shells. The contact retaining system shall be free of foreign

material, adhesive, or any obstruction that would prevent smooth contact insertion and positive retention. The contact

retention system for removable crimp contact connectors shall be a metal retention clip or other contact retention

method, which will enable the contacts to meet the contact retention requirements specified in 3.5.5. All contact

retention systems shall utilize a common contact insertion/removal tool, (see 3.3.1).

3.4.2.1 Insert arrangement. The insert arrangement shall be as specified by the connector PIN (see 3.1).

3.4.2.2 Contact alignment and stability. With all contacts in place, the alignment of pin and socket contacts shall

always permit engagement irrespective of buildup of allowable tolerances on hole locations, distortion of contacts due

to crimping, and insert location in the shell.

3.4.3 Shell design. The shell shall be designed to positively retain the insert and shall be constructed so that the

insert cannot be removed.

3.4.3.1 Shell polarization. Polarization shall be accomplished by a keystone shape shell design with polarization

accomplished before engagement of the pins and sockets.

3.4.3.2 Mounting. Connectors shall be provided with means to fasten the shell securely to a mounting surface.

Classes H and K connectors shall be provided with solder mounting provisions, or with provisions for external

mounting hardware (see 3.1).

3.4.4 Interchangeability. All connectors and accessories having the same military PIN shall be completely

interchangeable with each other with respect to installation (physical) and performance (function) as specified herein.

Solder and crimp contact connectors shall be intermatable (see 3.1).

3.4.5 Mated spacing. Connectors shall meet applicable performance requirements when mated within the spacing

shown on figure 2.

SO C KET

P L UG

R EC EPT AC L E

SH EL L SI Z ES

1 & 2 . 265 ± . 015

SH EL L SI Z ES

3, 4, 5, 6 . 256 ± . 015

PI N

FIGURE 2. Mated spacing.

3.5 Performance. Connectors shall be designed to meet the requirements specified herein.

3.5.1 Magnetic permeability (classes M and N). The relative permeability of classes M and N connectors shall not

exceed 2 µ when measured as specified in 4.5.3.

3.5.2 Maintenance aging (crimp type). All crimp-contact connectors shall be capable of conforming to the

requirements of 3.5.3 and 3.5.4 after maintenance aging of 4.5.4.