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NSN 5305-01-221-3503

Captive Screw

About this product

0.852 inches fastener length, hexagon head style, between 0.172 inches and 0.190 inches head height, width between flats: between 0.428 inches and 0.438 inches .

Manufacturer part number HLC7900-12C-F-5 for national stock number 5305012213503.

Datasheet

  • Product description

    Panel Screw Assembly NSN 5305-01-221-3503.

  • MPN or Model

    HLC7900-12C-F-5

  • 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)
  • Thread Class
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    0.250 inches
  • Fastener Length
    0.852 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.172 inches and 0.190 inches
  • Width Between Flats
    Between 0.428 inches and 0.438 inches
  • Internal Drive Style
    Slot
  • Material Accommodated Thickness
    Between 0.318 inches and 0.332 inches
  • Thread Diameter
    0.250 inches
  • Thready Qty Per Inch (tpi)
    20
  • Material
    Steel comp 302 primary washer
  • Material Specification
    Qq-a-225/8 federal specification single material response stand-off
  • Surface Treatment
    Passivate secondary washer
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment response secondary washer
  • 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 5305012213503

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HLC7900-12C-F-5 Huck International, Inc.
FT1195-2 Fastener Technology Corp.
T320014902 Lockheed Martin Librascope
HLC7900-12C-F-5 Huck Intl Inc
B4013388-2 Department Of The Army Hq
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