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NSN 5305-01-273-1497

Tap Bolt

About this product

Between 3.646 inches and 3.750 inches fastener length, hexagon head style, between 0.195 inches and 0.211 inches head height, width between flats: between 0.489 inches and 0.500 inches .

Manufacturer part number B1821BH031C375D for national stock number 5305012731497.

Datasheet

  • Product description

    Hexagon Head Cap Screw NSN 5305-01-273-1497.

  • MPN or Model

    B1821BH031C375D

  • 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
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.864 inches and 1.052 inches
  • Fastener Length
    Between 3.646 inches and 3.750 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.195 inches and 0.211 inches
  • Width Between Flats
    Between 0.489 inches and 0.500 inches
  • Hole Diameter
    Between 0.060 inches and 0.068 inches
  • Thread Diameter
    0.312 inches
  • Hole Quantity
    1
  • Hole Type
    Drilled
  • Features Provided
    Finished head
  • Thready Qty Per Inch (tpi)
    18
  • Min. Tensile Strength (psi)
    150000 pounds per square inch
  • Hardness Rating
    32.0 rockwell c and 38.0 rockwell c
  • Hole Configuration Style
    Hexagon flats
  • Material
    Steel
  • Material Specification
    Astm a354, grade bd assn standard single material response
  • Surface Treatment
    Zinc and chromate
  • Surface Treatment Specification
    Astm b633 type 2 sc 3 assn standard single treatment response
  • Thread Series Designator
    Unc
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Hexagon Head Cap Screw

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

Mechanic Bill explains Tap Bolt

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NSN 5305012731497

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
B1821BH031C375D American National Standards
FF-S-85 Federal Specifications
MS18154-45 Military Standards
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