MIL-DTL-83526C
3.11.31 Flammability. When tested in accordance with 4.9.31, burning and after-flow extinguishing
time shall be three seconds maximum. Dripping which will cause flammable material to ignite and violent
burning or an explosive type fire shall not occur.
3.12 Assembly instructions. Complete assembly instruction shall be furnished by the vendor with each
connector acquired under this specification. Assembly instructions shall include but not be limited to:
a. Cable preparation-stripping dimensions and tolerances.
b. List and description of crimping or special tools if required.
c. Sufficient pertinent dimensions for verification of correct parts; as a minimum the entry openings
shall be specified.
d. Military PIN and manufacturer's ID.
3.13 Workmanship. All details of workmanship shall be in accordance with high-grade fiber-optic
connector manufacturing practice when visually examined in accordance with 4.9.32. Connectors and
accessories shall be complete, dimensionally uniform and free of manufacturing flaws that would degrade
performance, inhibit proper connection to interfacing elements, or otherwise yield an inferior product. The
following shall be a minimal level to visual examination to be performed and is not intended to restrict
other pertinent workmanship examinations.
a. Loose termini, insert or other connector parts, which adversely affect the environment sealing,
permit cable sealant penetration 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 sub-standard connector surface blemishes shall not be permitted.
3.14 Mud test (see 4.10). When specified (see 3.1), the insertion loss, measured following the mud
test per paragraph 4.10, shall not increased by more than 0.2 dB.
3.15 Electromagnetic shielding. When tested in accordance with 4.12, the propagated radio frequency
(RF) attenuation of the connector shall be not less than 60 dB for frequencies greater than 10 GHz.
4. VERIFICATION
4.1 Verification program. Requirements for the verification program shall be as identified in the
qualification instructions (see 6.7).
4.1.1 Assembly plants. Assembly plants must be listed on, or approved for listing on, the applicable
qualified products list. The assembly plant shall use only piece parts supplied by the qualified connector
manufacturer. No testing other than visual examination is required of certified piece parts obtained from
the qualified connector manufacturer, except when there is cause for rejection. All assemblies produced
at the assembly plant shall be subjected to examination of the product to assure that the assembly
process conforms with that established at the qualified manufacturing plant. Quality control requirements
shall be the same as required for the qualified connector manufacturer.
4.1.2 Test equipment and inspection facilities. Requirements for test equipment and inspection
facilities shall be as identified in the qualification instructions (see 6.8).
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