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NSN 5306-00-401-0774

Bolt Flush Head

About this product

1.250 inches fastener length, between 0.365 inches and 0.375 inches head diameter, between 0.244 inches and 0.250 inches head height, first diameter from head: between 0.175 inches and 0.180 inches .

Manufacturer part number 68A32C219-1 for national stock number 5306004010774.

Datasheet

  • Product description

    Internal Wrenching Bolt NSN 5306-00-401-0774.

  • MPN or Model

    68A32C219-1

  • 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
    0.310 inches
  • Fastener Length
    1.250 inches
  • 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 0.175 inches and 0.180 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    0.940 inches
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.250 inches
  • Width Across Flats
    Between 0.188 inches and 0.190 inches
  • Thready Qty Per Inch (tpi)
    20
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316
  • Material Specification
    66 federal standard all material responses
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Mil-s-5002 military specification single treatment response
  • Thread Series Designator
    Unc
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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 5306004010774

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
68A32C219-1 Naval Air Systems Command
68A32C219-1 Naval Air Systems Command
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