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NSN 5306-01-127-3741

Bolt Flush Head

About this product

0.410 inches fastener length, 0.250 inches head diameter, 0.150 inches first diameter from head, distance from largest bearing surface of head to end of first diameter: 0.070 inches .

Manufacturer part number 128854-3 for national stock number 5306011273741.

Datasheet

  • Product description

    Internal Wrenching Bolt NSN 5306-01-127-3741.

  • MPN or Model

    128854-3

  • 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
    0.110 inches
  • Fastener Length
    0.410 inches
  • Head Diameter
    0.250 inches
  • First Diameter From Head
    0.150 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    0.070 inches
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.190 inches
  • Width Across Flats
    Between 0.156 inches and 0.159 inches
  • Thready Qty Per Inch (tpi)
    56
  • Min. Tensile Strength (psi)
    140000 pounds per square inch
  • Externally Relieved Body Diameter Quantity
    1
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp 4130
  • Material Specification
    Mil-s-6758 military specification single material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416, ty2 cl2 federal specification single treatment response
  • Thread Series Designator
    Uns
Internal Wrenching Bolt

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Mechanic Bill explains Bolt Flush Head

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NSN 5306011273741

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
128854-3 Lockheed Martin Corp
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