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NSN 5305-01-084-4707

Captive Screw

About this product

Three 0.035 in. To 0.045 in. Wide splines in shank and 120 degrees apart,thread to be double lead.

Manufacturer part number GS520CK4-04 for national stock number 5305010844707.

Datasheet

  • Product description

    Panel Screw Assembly NSN 5305-01-084-4707.

  • MPN or Model

    GS520CK4-04

  • 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
    Between 0.477 inches and 0.636 inches
  • Fastener Length
    Between 0.907 inches and 0.927 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.360 inches and 0.404 inches
  • Thread Diameter
    0.250 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Steel comp 8740 or steel comp 4140
  • Material Specification
    Mil-s-6049 military specification 1st material response or mil-s-5626 military specification 2nd material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416 type 2 cl 2 federal specification single treatment response
  • Thread Series Designator
    Unf
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Panel Screw Assembly

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

Mechanic Bill explains Captive Screw

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NSN 5305010844707

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
GS520CK4-04 Northrop Grumman Systems Corporation
GS520CK4-04 Fastener Innovation Technology, Inc.
CA21070-4-4HS Arconic Global Fasteners & Rings,
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