MIL-PRF-85045/16C
Jacket material: The jacket shall be composed of a low halogen, low smoke, low toxicity polymer material.
Number of fibers: One
Concentricity: >0.8
Short-term minimum bend diameter: Eight times the cable outer diameter. (The short-term minimum bend
diameter is to be used in all environmental and mechanical tests which specify a cable minimum bend diameter.)
Long-term minimum bend diameter: Sixteen times the cable outer diameter.
Minimum continuous length: The minimum continuous length of all cables shall be not less than 0.5 km. If
lengths less than 0.5 km are specified in the purchase order, a conformance inspection shall be performed on test
specimens not less than 0.5 km in length from which the purchase order lengths are cut.
PERFORMANCE REQUIREMENTS:
Optical properties:
Maximum attenuation rate:
4.5 dB/km at 850±20 nm, 2.0 dB/km at 1300±20 nm for Class MM fiber.
1.0 dB/km at 1310±20 nm and 1550±20 nm for Class SM fiber.
Change in optical transmittance: Measurements shall be made at 1300±20 nm.
Crosstalk: Not applicable.
Mechanical properties:
Tensile loading and elongation: Applicable, tensile loading >270 N
Operating tensile loading: Applicable.
Dynamic bend: The tensile load shall be not less than 90 N.
Cyclic flexing: 500 cycles at 25±2 °C and 100 cycles at -28±2 °C. Change in optical transmittance
measurements are to be made every 100 cycles for the 500-cycle exposure and every 25 cycles for the 100-cycle
exposure. Each change in optical transmittance measurement shall be performed with the test specimen in the same
position in the test cycle. The cycling may be halted to perform the change in optical transmittance measurement.
Crush: The test load shall be 250 N at a rate of 250 N/min.
Cable twist-bending: 500 cycles at 25±2 °C and 100 cycles at -28±2 °C. The test load shall be 10 N. Change
in optical transmittance measurements are to be made every 100 cycles for the 500-cycle exposure and every
25 cycles for the 100-cycle exposure. Each change in optical transmittance measurement shall be performed with
the test specimen in the same position in the test cycle. The cycling may be halted to perform the change in optical
transmittance measurement.
Radial compression: Not applicable.
Impact: Not applicable.
Cable jacket tear strength: Applicable, except the cable jacket tear strength shall be not less than 35 N/cm of
jacket thickness for standard performance cable.
Hosing: Not applicable.
Dripping: Not applicable.
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