MIL-DTL-83538D
3.39 Electrical Integrity. Applicable to MIL-DTL-83538/3 and /11 buffer plugs only.
3.39.1 Electrical resistance. When tested in accordance with 4.6.39, the electrical resistance of the
contact path of an assembled connector set comprising; Launcher Receptacle, Buffer plug and Store
Receptacle shall be as follows: For the MIL-DTL-83538/3 buffer plug, the electrical resistance shall be not
greater than 27 milliohm for size 20 contacts and 15 milliohm for size 16 contacts. For the MIL-DTL-
83538/11 buffer plug, the electrical resistance shall be not greater than 36 milliohm for size 20 contacts
and 20 milliohm for size 16 contacts.
3.39.2 Applied high current. When tested as specified in 4.6.40, the MIL-DTL-83538/11 buffer plug
shall show no evidence of permanent deterioration of electrical continuity through their contact locations.
3.40 Contact location identification. Contact locations shall be identified as indicated on the applicable
military standard. All positions shall be identified on the front and rear faces of the insert except where
space limitations make this impracticable. Location of contact identifying characters shall be in close
proximity to the holes but need not be placed exactly where indicated on the standard. The preferred
color of the contact identifying character is white. When the background is a color against which white is
difficult to distinguish, a color will be chosen for which the identifying character can be easily
distinguished.
3.40.1 JAN and J marking. The United States Government has adopted and is exercising legitimate
control over the certification marks "JAN" and "J", respectively, to indicate that items so marked or
identified are manufactured to, and meet all the requirements of specifications. Accordingly, items
acquired to, and meeting all of the criteria specified herein and in applicable specifications shall bear the
certification mark "JAN" except that items too small to bear the certification mark "JAN" shall bear the
letter "J". The "JAN" or "J" shall be placed immediately before the PIN except that if such location would
place a hardship on the manufacturer in connection with such marking, the "JAN" or "J" may be located
on the first line above or below the PIN. Items furnished under contracts or orders which either permit or
require deviation from the conditions or requirements specified herein or in applicable specifications shall
not bear "JAN" or "J". In the event an item fails to meet the requirements of this specification and the
applicable specification sheets, the manufacturer shall remove completely the military PIN and the "JAN"
or the "J" from the sample tested and also from all items represented by the sample. The "JAN" or "J"
certification mark shall not be used on products acquired to contractor drawings or specification. The
United States Government has obtained Certificate of Registration Number 504,860 for the certification
mark "JAN" and Registration Number 1,586,261 for the certification mark "J".
3.41 Dust caps. Dust caps in accordance with MIL-DTL-83538/12 shall be placed over the coupling
ring of buffer plugs. Dust caps in accordance with SAE-AS90376 shall be placed over all other mating
connector faces.
3.42 Workmanship. The connector assembly and associated components shall be fabricated in a
manner such that the criteria for appearance, fit and adherence to specified tolerances are observed.
Particular attention shall be given to neatness and thoroughness of marking parts, plating, welding,
soldering, reviting, staking, and bonding. The connector components shall be free from crazing, cracks,
knit-lines, flow-lines, voids, pimples, chips, blisters, pinholes, sharp cutting edges, burrs, and other
defects that will adversely affect life, serviceability, or appearance.
3.43 Pure tin. The use of pure tin, as an underplate or final finish, is prohibited both internally and
externally. Tin content of connector components and solder shall not exceed 97 percent, by mass. Tin
shall be alloyed with a minimum of 3 percent lead, by mass (see 6.11).
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