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NSN 5305-01-369-7506

Button Head Socket Screw

About this product

3.250 inches fastener length, flat chamfer head style, 0.375 inches head diameter, internal drive style: hexagon.

Manufacturer part number 91251A555 for national stock number 5305013697506.

Datasheet

  • Product description

    Socket Head Cap Screw NSN 5305-01-369-7506.

  • MPN or Model

    91251A555

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    3.150 inches
  • Fastener Length
    3.250 inches
  • Head Style
    Flat chamfer
  • Head Diameter
    0.375 inches
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.250 inches
  • Width Across Flats
    0.188 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    180000 pounds per square inch
  • Hardness Rating
    39.0 rockwell c and 45.0 rockwell c
  • Color
    Black
  • Material
    Steel
  • Material Specification
    Se grade 8 assn standard single material response
  • Surface Treatment
    Oxide
  • 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 5305013697506

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
91251A555 Mcmaster-carr Supply Company
0N439009-1 National Security Agency
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