MIL-DTL-17/179B
TABLE I. Description.
Component
Construction
Inner conductor
Seven strands of silver-coated, annealed-copper-covered, steel wire, each
strand .004 inch diameter
Overall diameter: .012 inch ±0.001
Dielectric core
Type F-1: Solid, extruded PTFE
Diameter: .063 inch ±0.003
Outer conductor
Single braid of AWG No. 38 silver-coated copper wire
Diameter: .084 inch maximum
Coverage: 92.3%, nominal
Carriers: 16
Ends: 5
Picks/inch: 12.0 ±10%
Jacket
Type IX: FEP
Diameter: .100 inch ± 0.005
Inner braided shield
AWG No. 36 nickel-coated copper wire conforming to ASTM B-355
Coverage: 91.3% nominal
Braid angle: 34.8º nominal
Carriers: 16
Ends: 5
Picks/inch: 16.1 ±5%
Outer diameter: .130 maximum
Foil shield
Copper-polyester-copper laminate, .0024 inch thick OD, .0007 inch copper
each side of .001 inch polyester film conforming to MIL-I-631, type G, form F,
subform TF, class I
Overlap shall be 20 to 40 % of tape width.
Elongation 3% minimum.
Outer diameter: .145 maximum
Optional construction, of copper-polyester, polyester-copper laminate, .0007
inch copper backed with .0005 inch polyester film, is permissible
Outer braided shield
AWG No. 36 nickel-coated copper wire conforming to ASTM B-355
Coverage: 91.9% nominal
Braid angle: 25.9º nominal
Carriers: 16
Ends: 7
Picks/inch: 8.9 ±5%
Outer diameter: .170 maximum
Separator tape
.001 inch polyester film conforming to MIL-I-631, type G, form F, subform TF,
class I. Tape shall be spirally applied with not less than one third nor more
than two thirds lap
Outer diameter: .175 maximum
Braided jacket
Single braid of polyester fiber braid with high temperature finishers, conforming
to NEMA-WC27500
Diameter: .195 inch maximum
ENGINEERING INFORMATION
Continuous working voltage: 900 V rms, maximum.
Operating frequency: 3 GHz, maximum.
Velocity of propagation: 69.5 percent, nominal.
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