MIL-DTL-26500G
3.23 Contact retention. When tested as specified in 4.6.19, the individual contact retention mechanism
on unmated connectors shall retain the contact under the axial loads specified in table V. During the test,
the axial displacement of the contact shall not exceed .012 inch (0.305 mm) when pressures are applied
to the mating end of the contact.
TABLE V. Axial loads for contact retention (classes R, G, F, E, and K).
Contact
Axial loads
size
(pounds)
20
20
16
25
12
30
12 (shielded)
30
8 (shielded)
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3.24 Altitude immersion. When tested in accordance with 4.6.20, classes G, H, K, and R connectors
shall maintain an insulation resistance of at least 5,000 megohms and withstand a voltage of 1,500 volts
ac at sea level. Class F connectors shall maintain an insulation resistance of at least 1,000 megohms
and withstand a voltage of 1,500 volts ac at sea level.
3.25 Fluid immersion (classes R, G, E, and K). After immersion in fluids specified in 4.6.21 for the
times and conditions specified, unmated connectors shall mate properly.
3.25.1 Fluid immersion (class F). After immersion in fluids specified and according to the cycling
sequence of 4.6.21.1, unmated connectors shall mate properly. The insert shall not swell to the extent
that will cause cracks or tears. Inserts shall not show evidence of material reversion.
3.26 Contact resistance. When testing with a mating plug and in accordance with 4.6.22, the average
contact resistance value of any 10 contacts of classes H and K connectors shall not exceed those in and
in accordance with of SAE-AS39029 by more than 700 percent. No individual contact shall exceed the
specified value by more than 1,100 percent at 25° and 200°C. Contacts of mated classes R, G, F, and E
connectors shall meet the requirements in accordance with SAE-AS39029.
3.27 Workmanship. Details or workmanship shall be in accordance with high grade manufacturing
practices for similar connectors. All sharp corners shall be broken and shall be smooth; shell surfaces
shall be free from porosity, blow holes, burrs, and cracks. Inserts and grommets shall be free from
blowholes, burrs, flash, cracks, tears, swelling and shrinkage, and any other defect that would be
detrimental to the performance of the connector.
3.28 Recycled, recovered or environmentally preferable materials. Recycled, recovered, or
environmentally preferable materials should be used to the maximum extent possible, provided that the
material meets or exceeds the operational and maintenance requirements, and promotes economically
advantageous life cycle costs.
3.29 Part or Identifying Number (PIN) and manufacturer identification marking. Connectors and
accessories shall be permanently marked with the PIN, date code and the manufacturer's identification
marking, as well as the assembly plant identification marking, when applicable. The manufacturer's
identification marking shall include either the manufacturer name or the Commercial or Government Entity
Number (CAGE code), and may also be identified by a unique identifier, such as a trademark, a symbol, a
mint mark, or identification letters. The manufacturer's name, if used, may be abbreviated. If the
manufacturer has more than one manufacturing facility, then the CAGE code of the product line shall be
included on the part. If products are assembled by a qualified assembly plant, then the identification
marking shall also include the assembly plant's identification marking. The trademark shall be as
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