MIL-DTL-26518C
4.2.3 Test equipment and inspection facilities. Test and measuring equipment and inspection facilities of sufficient accuracy
qualify and quality to permit performance of the required inspection shall be established and maintained by the contractor. The
establishment and maintenance of a calibration system to control the accuracy of the measuring and test equipment (i.e. NCSL Z540-
1, ISO 10012-1 part, or comparable standards) shall be required.
4.2.4 Assembly distributor. Assembly distributors must be listed on, or approved for listing on, the applicable Qualified Product List
(QPL). The qualified connector manufacturer shall certify that the assembly distributor is approved for the distribution of the
manufacturer's parts. The assembly distributor shall use only piece parts supplied by the qualified connector manufacturer. No
testing other than visual examination is required of certified piece parts obtained from the qualified connector manufacturer, except
when there is cause for rejection. All assemblies produced at the assembly distributor's plant shall be subjected to examination of
product to assure that the assembly process conforms with that established at the qualified manufacturing plant. Quality control
requirements, including Government inspection surveillance, shall be the same as required for the qualified connector manufacturer.
4.3 Materials inspection. Materials inspection shall consist of certification supported by verifying data that the materials, as
specified by example, in table I, and on the specification sheets (see 3.1), used in fabricating the connectors, are in accordance with
the applicable referenced specifications or performance requirements prior to such fabrication (see 3.3, 4.7.1.1, and 6.2).
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. Use of alternate materials, plating, and
processes (see 3.3.1) shall be identified for inclusion in the product test documentation.
4.4.1 Inspection conditions. Unless otherwise specified herein, all inspections shall be performed in accordance with the test
conditions specified in the "GENERAL REQUIREMENTS" of MIL-STD-1344 and MIL-STD-202.
4.5 Sample size and inspection routine.
a.
Four complete connectors, mounted in accordance with MS24287, (see table VI, test samples 1, 3, 5, and 7) shall be
wired with MIL-W-22759 wire with insulation of extruded construction. The wire gauge shall be the smallest for which the
contacts are designed, i.e., size 20 contacts with 24 AWG wire, size 16 contacts with 18 AWG, and size 12 contacts with
14 AWG wire. Five percent of the contacts in each connector shall be omitted and the holes filled with sealing plugs.
These connectors, when tested in a mating condition, shall be positioned at the maximum panel spacing specified in the
applicable detail document.
b.
Four complete connectors, mounted in accordance with MS24287, (see table VI, test samples 2, 4, 6, and 8), shall be
wired with MIL-W-22759 wire with insulation of extruded construction. The wire gage shall be the largest for which the
contacts are designed, i.e., size 16 contacts with 16 AWG wire, and size 12 contacts with 12 AWG wire. Five percent of
the contacts in each connector shall be omitted and the holes filled with sealing plugs. Shielded contacts shall be wired
with MIL-DTL-27500 shielded wire as specified on the applicable military standard using tools and assembly procedures
recommended by the manufacturer. These connectors, when tested in a mating condition, shall be positioned at the
maximum panel spacing specified in the applicable detail document.
c.
The manufacturer shall determine that the insert materials meet the requirements of 3.6.1 and shall submit a certificate of
compliance with the connectors submitted for qualification testing.
d.
Four hermetic receptacles, together with four mating plugs, shall constitute a sample. These connector's shall be
mounted in accordance with MS24287. Two complete connectors shall be selected and wired with MIL-W-22759 wire,
with insulation of extruded construction. The wire gauge shall be the smallest for which the contacts are designed, i.e.,
size 20 contacts with 24 AWG wire, size 16 contacts with 18 AWG wire, and size 12 contacts with 14 AWG wire. Five
percent of the contacts in each plug connector shall be omitted and the holes shall be filled with sealing plugs. When
tested in a mating condition, these connectors shall be positioned at the maximum panel spacing specified in the
applicable military standard. The remaining two complete connectors shall be wired with MIL-W-22759 wire with
insulation of extruded construction. The wire gauge shall be the largest for which the contacts are designed, i.e., size 20
contacts with 20 AWG wire, size 16 contacts with 16 AWG wire, sand size 12 contacts with 12 AWG wire. Five percent
of the contacts in each plug connector shall be omitted and the holes filled with sealing plugs. When tested in a mating
condition, these connectors shall be positioned at the minimum panel spacing specified in the applicable military
standard. If the supplier of the receptacles is not a producer of plugs they may furnish plugs made by a qualified
supplier. The applicable tests shall be those of table VI. Wires used for the earlier tests may be removed for the air
leakage test. The hermetic receptacles shall be mounted, as in service, in sealed metal cans for any altitude test.
Jumper wires shall be used inside the cans. Should a failure occur which could be attributed to the plug, the results shall
be reported to the qualifying activity that will supply instructions.
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