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NSN 5306-00-276-8267

Freight Car Flush Head Bolt

About this product

4.500 inches fastener length, flat countersunk head style, between 1.219 inches and 1.303 inches head diameter, neck length: between 0.491 inches and 0.541 inches .

Manufacturer part number 4F253 for national stock number 5306002768267.

Datasheet

  • Product description

    Square Neck Bolt NSN 5306-00-276-8267.

  • MPN or Model

    4F253

  • 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.)
    0.6 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    1.750 inches
  • Fastener Length
    4.500 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 1.219 inches and 1.303 inches
  • Neck Length
    Between 0.491 inches and 0.541 inches
  • Thread Diameter
    0.750 inches
  • Thready Qty Per Inch (tpi)
    10
  • Minimum Yield Strength
    40000 pounds per square inch
  • Countersink Angle
    Between 80.0 degrees and 82.0 degrees
  • Neck Width
    Between 0.750 inches and 0.765 inches
  • Material
    Steel comp 1010
  • Material Specification
    Qq-s-634 federal specification single material response
  • Thread Series Designator
    Unc
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Square Neck Bolt

A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.

Mechanic Bill explains Freight Car Flush Head Bolt

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NSN 5306002768267

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
4F253 Caterpillar Inc.
4F0253 Caterpillar Inc.
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