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NSN 5305-01-253-5918

Captive Screw

About this product

Point length 0.205min and 0.235max.

Manufacturer part number FT1226-4 for national stock number 5305012535918.

Datasheet

  • Product description

    Panel Screw Assembly NSN 5305-01-253-5918.

  • MPN or Model

    FT1226-4

  • 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 0.369 inches and 0.431 inches
  • Fastener Length
    Between 1.772 inches and 1.882 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.178 inches and 0.198 inches
  • Width Between Flats
    Between 0.367 inches and 0.375 inches
  • Internal Drive Style
    W/o internal drive
  • Thread Diameter
    0.250 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    175000 pounds per square inch
  • Hardness Rating
    35.0 rockwell c primary washer and 43.0 rockwell c primary washer
  • Material
    Steel comp xm-13 fastener
  • Material Specification
    Qq-s-763 federal specification all material responses stand-off
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 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 5305012535918

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
FT1226-4 Fastener Technology Corp.
587R107H02 Northrop Grumman Systems Corporation
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