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NSN 5305-01-388-5321

Button Head Socket Screw

About this product

Threads, shank and bearing surface of head coated with mil-l-24478, fn42 or navsea approved equivalent.

Manufacturer part number 801-6641191FNB18 for national stock number 5305013885321.

Datasheet

  • Product description

    Socket Head Cap Screw NSN 5305-01-388-5321.

  • MPN or Model

    801-6641191FNB18

  • 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
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    2.250 inches
  • Fastener Length
    3.000 inches
  • Head Style
    Flat chamfer
  • Head Diameter
    Between 0.921 inches and 0.938 inches
  • Head Height
    Between 0.616 inches and 0.625 inches
  • Locking Feature
    Patch threads or pellet threads or strip threads
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.625 inches
  • Width Across Flats
    0.500 inches
  • Thready Qty Per Inch (tpi)
    11
  • Material
    Steel comp 630 fastener
  • Material Specification
    Astm a564 assn standard single material response fastener
  • Thread Series Designator
    Unc
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Socket Head Cap Screw

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Mechanic Bill explains Button Head Socket Screw

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NSN 5305013885321

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
801-6641191FNB18 Naval Sea Systems Command
Stock Check
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