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NSN 5306-00-149-9972

Bolt Flush Head

About this product

Between 2.735 inches and 2.765 inches fastener length, bevel-conical head style, between 0.802 inches and 0.813 inches head diameter, head height: between 0.450 inches and 0.470 inches .

Manufacturer part number NAS148-44 for national stock number 5306001499972.

Datasheet

  • Product description

    Internal Wrenching Bolt NSN 5306-00-149-9972.

  • MPN or Model

    NAS148-44

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.787 inches and 0.837 inches
  • Fastener Length
    Between 2.735 inches and 2.765 inches
  • Head Style
    Bevel-conical
  • Head Diameter
    Between 0.802 inches and 0.813 inches
  • Head Height
    Between 0.450 inches and 0.470 inches
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.500 inches
  • Width Across Flats
    Between 0.501 inches and 0.504 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Material
    Steel comp e4340 or steel comp 8740 or steel comp 6150 or steel comp 3140 or steel
  • Material Specification
    Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or mil-s-8503 military specification 3rd material response or qq-s-624 federal specification 4th material response or qq-s-624, comp 3125 federal specification 5th material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416, type 2, class 3 federal specification single treatment response
  • Thread Series Designator
    Unf
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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 5306001499972

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS148-44 National Aerospace Standards
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