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NSN 5305-01-278-1987

Adjusting Screw

About this product

3.070 inches fastener length, knurled no. 1 head style, 1.250 inches head diameter, head height: 0.550 inches .

Manufacturer part number 2850068-1 for national stock number 5305012781987.

Datasheet

  • Product description

    Thumbscrew NSN 5305-01-278-1987.

  • MPN or Model

    2850068-1

  • Schedule B
    7415.33.8550 (Other copper screws (not for wood) bolts and nuts)
  • NMF (National Motor Freight)
    096630 - Screws NOI Brass/bronze/copper
  • Unit Weight (Est.)
    6.5 lb
  • Thread Class
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    2.880 inches
  • Fastener Length
    3.070 inches
  • Head Style
    Knurled no. 1
  • Head Diameter
    1.250 inches
  • Head Height
    0.550 inches
  • First Diameter From Head
    Between 0.380 inches and 0.390 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    Between 0.190 inches and 0.250 inches
  • Point Style
    Flat
  • Thread Diameter
    0.500 inches
  • Thready Qty Per Inch (tpi)
    13
  • Externally Relieved Body Diameter Quantity
    1
  • Material
    Copper alloy 630
  • Material Specification
    Qq-c-465 federal specification single material 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 5305012781987

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
2850068-1 Navair And Navsea Managed
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