MIL-DTL-83526C
4.2 Classification of inspection. The inspection requirements specified herein are classified as follows:
a. Qualification inspection (see 4.4).
b. Conformance inspection (see 4.7).
4.3 Inspection conditions. Unless otherwise specified, all inspections shall be performed in accordance
with the test conditions specified in TIA/EIA 455 or as specified herein.
4.4 Qualification inspection. Qualification inspection shall be performed at a laboratory acceptable to
the Government (see 6.3) on sample units produced with equipment and procedures normally used in
production. This inspection shall consist of performing the inspections and optical tests specified in table
II. Upon successful completion of Group I testing, Groups II thru IV shall be subjected to their respective
tests specified in table II in the sequence shown herein and Group V shall be submitted for qualification
test as specified in Appendix A.
4.4.1 Reliability and Quality.
4.4.1.1 QPL system. The manufacturer shall establish and maintain a QPL system as described in
3.2.1. Evidence of such compliance is a prerequisite for qualification and verification of qualification.
4.4.1.2 SPC program. A SPC program shall be maintained in accordance with EIA-557 as described in
3.2.2. Evidence of such compliance shall be verified by the qualifying activity of this specification as a
perquisite for qualification and continued qualification.
4.5 Test sample. Fiber-optic connector, backshell, and accessory samples complying with the
specified requirements (see 3.1) shall be submitted for qualification. The manufacturer shall provide a
counterpart connector for each connector subjected to qualifying tests requiring mating assemblies. The
counterpart connectors provided for this purpose shall be either, previously qualified connectors or new
connectors submitted for qualification testing. Manufacturers not producing mating connectors shall
submit data substantiating that tests were performed with qualified counterpart connectors. For those
tests specifying the use of mated connectors, optical and mechanical test assessment shall be made
using the assigned counterpart connector for those test measurements as required.
4.5.1 Sample size. Eight mated in-line cable connectors, manufactured by normal production methods
shall be provided for qualification testing.
4.5.1.1 Sample preparation. Unless otherwise specified, connectors shall be fully assembled into
cable-connector assemblies using the types of cable specified in the applicable connector specification
sheet. Connector terminals shall be optically finished with termini properly seated within their inserts. For
mated connectors, full sealing capability shall be provided as specified. Connectors shall be provided
with backshell, strain relief cable clamp and attached to a 13 feet minimum length of the specified cable
type terminated with ST type connectors.
4.5.2 Inspection routine. Connector, backshell, and accessory samples shall be tested in accordance
with the sequence of table II. The connector group samples may be tested simultaneously.
4.5.3 Failures. One or more failures shall be cause for refusal to grant qualification approval.
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