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NSN 5306-00-004-5125

Bolt Flush Head

About this product

Between 0.609 inches and 0.641 inches fastener length, between 0.262 inches and 0.270 inches head diameter, between 0.159 inches and 0.164 inches head height, first diameter from head: between 0.095 inches and 0.097 inches .

Manufacturer part number 20565-1 for national stock number 5306000045125.

Datasheet

  • Product description

    Internal Wrenching Bolt NSN 5306-00-004-5125.

  • MPN or Model

    20565-1

  • 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
    0.304 inches
  • Fastener Length
    Between 0.609 inches and 0.641 inches
  • Head Diameter
    Between 0.262 inches and 0.270 inches
  • Head Height
    Between 0.159 inches and 0.164 inches
  • First Diameter From Head
    Between 0.095 inches and 0.097 inches
  • Second Diameter From Head
    Between 0.260 inches and 0.270 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    Between 0.185 inches and 0.195 inches
  • Distance From Largest Bearing Surface Of Head To End Of Second Diameter
    Between 0.225 inches and 0.245 inches
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.138 inches
  • Width Across Flats
    Between 0.140 inches and 0.142 inches
  • Thready Qty Per Inch (tpi)
    32
  • Hardness Rating
    34.0 rockwell c and 40.0 rockwell c
  • Surface Finish
    63.0 microinches bearing surface of head
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Steel comp 416
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 type 2 federal 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 5306000045125

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
20565-1 Rockwell Collins, Inc.
20565-01 Allenwest Standard Products Ltd
20565-01 Allenwest Standard Products Ltd
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