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MIL-DTL-83522/17C
Patch panel thickness. ST-to-ST adapter is mounted to a patch panel with a 4.0 mm (0.16 inch) minimum
thickness.
Part or Identifying Number (PIN) is a new term encompassing previous terms used in specifications such
as part number, type designator, or identification number.
PIN:
M83522/17 X
X
X
Temperature:
H High temperature
Temperature
N Normal temperature
Fiber size
Fiber size
Y (type II) (125 µm, MM/SM)
Additional considerations
Z (type I) (140 µm, MM)
Additional considerations:
S Qualified to space flight
Requirements.
TABLE II. PIN supersession data.
Superseded PIN
Superseding PIN
M83522/17 HX
M83522/17 HY
M83522/17 NX
M83522/17 NY
NOTE: M83522/17-NX may be supplied for 6 months from the date of this specification sheet
amendment to allow manufacture suppliers to be depleted.
Qualification by similarity- change in fiber size from single mode to multimode: Manufacturers who are
qualified under this specifications sheet for a particular temperature and single mode fiber, and whose
62.5/125 micron multimode ST-to-ST adapter passes insertion loss and shock specified herein, are
qualified under this specification sheet for 62.5/125 micron multimode and 100/140 micron multimode
fiber sizes. Testing is to be performed on four mated pair.
Qualification by similarity- change in the ST-to-ST adapter alignment sleeve: Manufacturers who are
qualified under this specification sheet for a particular temperature, fiber sixe and alignment sleeve, and
whose ST-to-ST adapter with an alternate alignment sleeve passes the size (partial), weight,
workmanship (include mating check), insertion loss (10 matings, no cut back), mating durability, impact,
shock, thermal shock, temperature cycling, and flammability specified herein, are qualified under this
specification sheet for the change in the alignment sleeve. This qualification by similarity is valid if the
only difference between the previously qualified MIL-DTL-83522/17 ST-to-ST adapter and the one being
tested is a change in materials. Size inspection, weight and workmanship are to be performed on 20 ST-
to-ST adapters. The remainder of the testing is to be performed on four mated pair. Test is to be waived
depending on alignment sleeve configuration and material.
Qualification by similarity; change in housing material: Manufacturers who are qualified under this
specification sheet for a particular temperature and fiber size, and whose ST-to ST adapter with an
alternate housing material passes the size, weight, identification marking, workmanship, insertion loss,
temperature humidity cycling, temperature cycling and salt spray specified herein, are qualified under this
specification sheet for the change in housing material. This qualification by similarity is valid if the only
difference between the previously qualified MIL-DTL-83522/1 ST to ST adapter and the one being tested
is a change in housing material. If dimensions have changed (i.e., nominal and tolerances are not eh
same or tighter), the ST- to ST adapter must pass shock also, Size inspection, performed on 30 St-to-ST
Adapters. The remainder of the testing is to be performed on four mated pair. Test is to be performed in
the sequence listed.
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