MIL-PRF-29504B
3.3.5 Fungus resistance. When tested in accordance with 4.9.16, polymeric
terminus materials shall show sparse or very restricted microbial growth and
reproduction with minor or inhibited substrate utilization. There shall be
little or no chemical, physical or structural change detectable.
3.3.6 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.
3.4 Design and construction. Termini shall be of the design, construction,
and physical dimensions as specified (see 3.1).
3.4.1 Optical termini. Optical terminus dimensions shall be as specified
(see 3.1). The mating ends of these termini shall be shaped to prevent
gouging of the insert during engagement. The terminus design shall preclude
damage to the terminus retention device or to the sealing members during
insertion or removal of a terminus. No terminus damage shall result from
inserting termini into or removing termini from the connector with the tool
specified for insertion or removal. The terminus shall terminate fibers with
the properties, dimensions and dimensional tolerance specified (see 3.1).
3.4.1.1 Dummy termini. Dummy termini shall be as specified (see 3.1).
Requirements for retention, insertion and removal, and environmental sealing
of the dummy termini shall be equivalent to those for the in-service optical
termini.
3.4.2 Terminus insertion and removal methods. Optical terminus insertion
shall be accomplished by inserting the terminus through the insert of the
qualification connector half (see 3.1) and by locking it in place. The
individual termini shall be positively retained in the connector when
installed with the terminus insertion tool and shall be capable of being
removed without terminus or insert damage when using the terminus removal
tool. Requirements for these tools shall be as specified (see 3.1).
3.4.3 Finishes. Finishes shall not peel or chip. Termini shall show no
evidence of nicks, burrs, or other surface blemishes. Terminus parts shall
not gall when inserted into the connector insert or mated with a mating
terminus.
3.4.4 Interchangeability. All termini having the same PIN shall be
physically and functionally interchangeable without need for modification of
such items or of termination tools.
3.4.5 Intermateability. All termini of the same PIN shall be intermateable
with their counterpart termini.
3.4.6 Interoperability. All termini of the same PIN shall be
interoperable. Upon qualification of the first manufacturer, all subsequent
manufacturers shall provide proof of interoperability with each qualified
manufacturer as specified in 4.10. The termini shall meet the requirements of
3.5.1, 3.6.6 and 3.6.9 for each specified interoperability condition (see
4.10).
3.4.7
Maintainability.
Termini shall require no preventative maintenance.
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