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NSN 5305-01-553-3543

Captive Screw

About this product

Recess plug depth is 0.179 - 0.191 inches; internal threads.

Manufacturer part number 18S03-1-1AA for national stock number 5305015533543.

Datasheet

  • Product description

    Panel Screw Assembly NSN 5305-01-553-3543.

  • MPN or Model

    18S03-1-1AA

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3b
  • Thread Direction
    Right-hand
  • Fastener Length
    Between 0.585 inches and 0.595 inches
  • Head Style
    Pan
  • Head Diameter
    Between 0.320 inches and 0.330 inches
  • Head Height
    0.110 inches
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.164 inches
  • Width Across Flats
    Between 0.157 inches and 0.160 inches
  • Thready Qty Per Inch (tpi)
    36
  • Part Name Assigned By Controlling Agency
    Stud assembly plus flush
  • Lead Thread Quantity
    Four
  • Material
    Steel fastener
  • Material Specification
    Astm a240 assn standard 1st material response bearing surface of head and astm a167 assn standard 2nd material response bearing surface of head and astm a666 assn standard 3rd material response bearing surface of head
  • Surface Treatment
    Passivate bearing surface of head
  • Surface Treatment Specification
    Qq-p-416, ty2 cl2 federal specification all treatment responses fastener
  • Thread Series Designator
    Unf
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 5305015533543

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
18S03-1-1AA Arconic Global Fasteners & Rings,
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