MIL-PRF-28876E
3.10.3.3 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 part number
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 part number. 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 part number 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 specifications. 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".
3.10.4 Workmanship. All details of workmanship shall be as specified
herein when examined in accordance with 4.6.4. Connector parts shall be
dimensionally uniform and free of manufacturing flaws that would degrade
performance, inhibit proper connection to interfacing elements, and otherwise
yield an inferior product. The following shall be a minimal level of visual
examination to be performed and is not intended to restrict other pertinent
workmanship examinations:
a. Loose termini, inserts, or other connector parts which adversely effect
the environmental sealing, or degrade optical termini alignment shall
not be permitted.
b. Peeling or chipping of plating or finish, galling of mating parts
indicating excessive wear, nicks, burrs, or other substandard connector
surface blemishes shall not be permitted.
3.10.5 Screw threads. When tested in accordance with 4.6.2.5, slight
out-of-roundness beyond the tolerances specified is acceptable if the threads
can be checked without forcing the thread gauges. Screw threads may be
relieved provided the relief does not interfere with proper performance of the
screw threads.
3.10.6 Maintainability.
The connectors shall require no preventive
maintenance.
3.11 Optical performance. The optical performance requirements of 3.11.1
through 3.11.5 shall be used to monitor effects of the inspection requirements
specified in 3.12 and 3.13 as required by 4.4 and 4.5.3.
3.11.1 Insertion loss. The initial insertion loss and the insertion loss
verified at any time during testing for a mated pair of connectors shall be
not greater than the values specified in table I for each of the mated
measurements. The insertion loss shall be measured for 10 mates and demates
except for shell size 23 which shall be measured for 5 mates and demates (see
4.6.3.1).
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