MIL-PRF-29504/4D
Cable strain relief capture mechanism. Three styles for a capture mechanism are specified for this
terminus design (see table I). Cable strain relief capture mechanism shall not interfere with intended
sealing performance of wire grommet seal, a component in the MIL-DTL-38999 connector, or with
the functionality of the insertion and removal tools (see table II).
Style 1: Captive strength member outside barrel (body) with shrink sleeve.
Style 2: Captive strength member inside terminus barrel (body).
Style 3: Captive strength member outside terminus barrel (body) with crimp sleeve. The
terminus shall meet all the requirements when the crimp sleeve is assembled to the terminus
using a crimp die with flats measuring .088 ± .001 in (2.235 ± .025 mm) across and .150 inch
(3.81 mm) maximum long. The crimp die shall not contain an optional protrusion on either upper
or lower die.
Tools: See table II.
TABLE II. Tools.
Tool
PIN
Insertion tool
M81969/14-03
Removal tool
M81969/14-03
Mating terminus: MIL-PRF-29504/5.
Circular run-out: Not greater than the value specified in table I.
Frequency of terminus end face cleaning. Unless otherwise specified, terminus may be cleaned
before or after each test if the connector is demated. Cleaning shall not be performed during the ten
successive mates for the insertion loss test. Unless otherwise specified, cleaning may be performed
during mating durability before each optical transmittance measurement. Terminus end face
cleaning shall be performed for the post optical transmittance measurement after the salt spray test.
The optical transmittance measurement is performed after the general cleaning and inspection for
corrosion. Cleaning may be performed at other times when degradation in optical performance
occurs. Cleaning performed as a corrective action for degraded optical performance shall be noted
on the data sheet. Unless otherwise specified, cleaning of the optical end faces is to occur without
removal of termini from the connector.
Qualification inspection. Inspections and sequence shall be performed as listed in table III.
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