NSN 5306-01-173-8034

Bolt Flush Head

About this product

1.375 inches fastener length, fillister head style, between 0.365 inches and 0.375 inches head diameter, head height: between 0.244 inches and 0.250 inches .

Manufacturer part number 5759547 for national stock number 5306011738034.

Picture of NSN 5306-01-173-8034


  • Product description

    Internal Wrenching Bolt NSN 5306-01-173-8034.

  • MPN or Model


  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093470 - Bolts/nuts I/s
  • Unit Weight (Est.)
    2.1 lb
  • Thread Class
  • Thread Direction
  • Thread Length
    0.500 inches
  • Fastener Length
    1.375 inches
  • Head Style
  • Head Diameter
    Between 0.365 inches and 0.375 inches
  • Head Height
    Between 0.244 inches and 0.250 inches
  • First Diameter From Head
    Between 0.208 inches and 0.212 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    0.875 inches
  • Internal Drive Style
  • Thread Diameter
    0.250 inches
  • Width Across Flats
    Between 0.1875 inches and 0.1900 inches
  • Thready Qty Per Inch (tpi)
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Hardness Rating
    34.0 rockwell c and 38.0 rockwell c
  • Externally Relieved Body Diameter Quantity
  • Material
  • Material Specification
    Ff-s-86 federal specification single material response
  • Surface Treatment
  • Surface Treatment Specification
    Qq-p-416, type 2, cl 3 federal specification single treatment response
  • Thread Series Designator
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

Pricing and Availability

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
5759547 Naval Sea Systems Command
Stock Check
Availability for this item was last checked on 12/20/23. The quantities and conditions available at the time were:
  • NE: 2298
  • NS: 6