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NSN 5305-00-008-7868

Adjusting Screw

About this product

Between 2.281 inches and 2.312 inches fastener length, thumb no. 3 head style, between 0.859 inches and 0.891 inches head height, width between flats: between 1.046 inches and 1.078 inches .

Manufacturer part number SM-B-208666-1 & -2 for national stock number 5305000087868.

Datasheet

  • Product description

    Thumbscrew NSN 5305-00-008-7868.

  • MPN or Model

    SM-B-208666-1 & -2

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.453 inches and 0.516 inches
  • Fastener Length
    Between 2.281 inches and 2.312 inches
  • Head Style
    Thumb no. 3
  • Head Height
    Between 0.859 inches and 0.891 inches
  • Width Between Flats
    Between 1.046 inches and 1.078 inches
  • First Diameter From Head
    Between 0.170 inches and 0.180 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    Between 1.796 inches and 1.828 inches
  • Point Style
    Cone
  • Thread Diameter
    0.250 inches
  • Thready Qty Per Inch (tpi)
    20
  • Externally Relieved Body Diameter Quantity
    1
  • Material
    Steel comp 304
  • Material Specification
    Qq-s-763 federal specification single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment response
  • Thread Series Designator
    Unc
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Thumbscrew

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

Mechanic Bill explains Adjusting Screw

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NSN 5305000087868

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
SM-B-208666-1 & -2 Army, United States Department Of
SMB208666 Us Army Communications &
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