1-321-802-5889

NSN 5985-00-434-8986

Tower Waveguide

About this product

Internal, rectangular external, rectangular cross sectional shape, seamless single tubing segment tubing wall construction style, twistable single tubing segment tubing twist type, tubing twist angle in deg: 95.0 single tubing segment.

Manufacturer part number M287/3-43-0250 for national stock number 5985004348986.

Datasheet

  • Product description

    Waveguide Assembly NSN 5985-00-434-8986.

  • MPN or Model

    M287/3-43-0250

  • Schedule B
    8529.10.9000 (Antenna & antenna reflectors of all kinds; parts suitable for use soley or principally w/ apparatus of heading 8525 to 8528, nesoi)
  • NMF (National Motor Freight)
    063520 - Waveguide In Boxes/crates
  • Unit Weight (Est.)
    3 lb
  • Cross Sectional Shape
    Internal, rectangular external, rectangular
  • Thread Class
    2b first flange all connection facilities
  • Thread Direction
    Right-hand first flange all connection facilities
  • Tubing Wall Construction Style
    Seamless single tubing segment
  • Tubing Twist Type
    Twistable single tubing segment
  • Tubing Twist Angle In Deg
    95.0 single tubing segment
  • Flange Quantity
    2
  • Flange Inside Width
    1.003 inches second flange and 1.006 inches second flange
  • Flange Inside Height
    0.503 inches second flange and 0.506 inches second flange
  • Flange Outside Width
    1.610 inches second flange and 1.640 inches second flange
  • Flange Outside Height
    1.610 inches first flange and 1.640 inches first flange
  • Flange Inside Diameter
    1.406 inches first flange and 1.437 inches first flange
  • Flange Depth
    0.423 inches second flange and 0.453 inches second flange
  • Flange Connecting Hole Diameter
    0.169 inches second flange all connection facilities and 0.172 inches second flange all connection facilities
  • Voltage Standing Wave Ratio
    1.15
  • Thready Qty Per Inch (tpi)
    32 first flange all connection facilities
  • Maximum Operating Pressure
    30.0 pounds per square inch gage
  • Waveguide Outside Width
    Between 0.996 inches and 1.004 inches
  • Thread Size
    0.164 inches first flange all connection facilities
  • Waveguide Inside Width
    Between 0.896 inches and 0.904 inches
  • Waveguide Inside Height
    Between 0.396 inches and 0.404 inches
  • Waveguide Outside Height
    Between 0.496 inches and 0.504 inches
  • Flange Connecting Facility And Quantity
    4 unthreaded hole second flange all connection facilities
  • Flange Style
    Cover type second flange
  • Waveguide Length
    2.083 feet
  • Flexibility
    Flexible single tubing segment
  • Material
    Copper alloy all tubing segment and flange
  • Surface Treatment
    Any acceptable all flange outside surfaces
  • Style Designator
    Straight type
  • Thread Series Designator
    Unc first flange all connection facilities
  • Specification Data
    81349-mil-w-287/3 government specification
  • Fsc Application Data
    Antennas, waveguides and related equip.
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Waveguide Assembly

An item consisting of one or more definite lengths of straight or formed, flexible or rigid, prefabricated hollow tubing of conductive material. The tubing has a predetermined cross section and is designed to guide or conduct high frequency electromagnetic energy through its interior. One or more ends are terminated. May include common mounting of a switch, wave guide, a dummy load, electrical and other components such as waveguide section, cable terminal chamber and the like. Excludes coupler, rotary, radio frequency; coupler, directional; adapter, waveguide; and tuner, waveguide.

Mechanic Bill explains Tower Waveguide

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NSN 5985004348986

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
M287/3-43-0250 Military Specifications
MIL-W-287/3 Military Specifications
FG090ACCB25 Military Specifications
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