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NSN 5306-01-398-5026

Wheel Bolt

About this product

2.179 inches fastener length, double hexagon w/hole head style, 0.300 inches head height, width between flats: 0.312 inches .

Manufacturer part number MS21250-04027 for national stock number 5306013985026.

Datasheet

  • Product description

    Machine Bolt NSN 5306-01-398-5026.

  • MPN or Model

    MS21250-04027

  • 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)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.492 inches
  • Fastener Length
    2.179 inches
  • Head Style
    Double hexagon w/hole
  • Head Height
    0.300 inches
  • Width Between Flats
    0.312 inches
  • Extended Washer Diameter
    Between 0.428 inches and 0.438 inches
  • Extended Washer Thickness
    0.069 inches
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 1.677 inches and 1.697 inches
  • Features Provided
    Finished head
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    180000 pounds per square inch
  • Hardness Rating
    39.0 rockwell c and 43.0 rockwell c
  • Surface Finish
    32.0 microinches threads
  • Material
    Steel comp 4140 or steel comp e4340 or steel comp 8740 or steel comp 6150
  • Material Specification
    Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-6049 military specification 3rd material response or mil-s-8503 military specification 4th material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416 ty2 cl2 federal specification single treatment response
  • Thread Series Designator
    Unjf
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Machine Bolt

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

Mechanic Bill explains Wheel Bolt

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NSN 5306013985026

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS21250-04027 Military Standards
MS21250-04027 National Aerospace Standards
NASM8831 National Aerospace Standards
MIL-B-8831 Military Specifications
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