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NSN 5305-01-307-1820

Button Head Socket Screw

About this product

0.750 inches fastener length, knurled no. 1 head style, between 0.365 inches and 0.375 inches head diameter, head height: between 0.244 inches and 0.250 inches .

Manufacturer part number 91251A540 for national stock number 5305013071820.

Datasheet

  • Product description

    Socket Head Cap Screw NSN 5305-01-307-1820.

  • MPN or Model

    91251A540

  • 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 0.650 inches and 0.750 inches
  • Fastener Length
    0.750 inches
  • Head Style
    Knurled no. 1
  • Head Diameter
    Between 0.365 inches and 0.375 inches
  • Head Height
    Between 0.244 inches and 0.250 inches
  • Internal Drive Style
    Hexagon
  • End Application
    Mrap - cougar
  • Thread Diameter
    0.250 inches
  • Width Across Flats
    0.188 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    180000 pounds per square inch
  • Hardness Rating
    39.0 rockwell c and 45.0 rockwell c
  • Color
    Black
  • Material
    Steel
  • Material Specification
    Sae grade 8 assn standard single material response
  • Surface Treatment
    Oxide
  • Thread Series Designator
    Unc
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Socket Head Cap Screw

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Mechanic Bill explains Button Head Socket Screw

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NSN 5305013071820

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
91251A540 Mcmaster-carr Supply Company
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