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NSN 5305-01-174-0519

Adjusting Screw

About this product

0.112 dia hole for plug at threaded end,0.035 in. To 0.045 in. Wide by 0.024 in. To 0.034 in. Deep spline 3 places,spaced 120 degrees apart.

Manufacturer part number CA21166-4-2 for national stock number 5305011740519.

Datasheet

  • Product description

    Thumbscrew NSN 5305-01-174-0519.

  • MPN or Model

    CA21166-4-2

  • 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
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.487 inches
  • Fastener Length
    1.059 inches
  • Head Style
    Thumb no. 6
  • Head Height
    0.625 inches
  • Width Between Flats
    Between 0.076 inches and 0.079 inches
  • Shoulder Diameter
    0.247 inches first shoulder and 0.249 inches first shoulder
  • Shoulder Length
    0.150 inches first shoulder and 0.290 inches first shoulder
  • Point Style
    Pointless
  • Thread Diameter
    0.250 inches
  • Thready Qty Per Inch (tpi)
    28
  • Shoulder Shape
    Round first shoulder
  • Material
    Steel comp 8740 fastener or steel comp 4140 fastener
  • Material Specification
    Mil-s-6049 military specification single material response fastener or mil-s-5626 military specification single material response fastener
  • Surface Treatment
    Passivate top of head
  • Surface Treatment Specification
    Qq-p-416 type 2 cl 2 military specification single treatment response fastener
  • Thread Series Designator
    Unf
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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 5305011740519

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
CA21166-4-2 Arconic Global Fasteners & Rings,
GS522Y4-2 Northrop Grumman Systems Corporation
FIT7833-4-2 Fastener Innovation Technology, Inc.
Stock Check
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