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NSN 5305-00-001-9768

Button Head Socket Screw

About this product

Between 1.234 inches and 1.266 inches fastener length, flat countersunk head style, between 0.322 inches and 0.385 inches head diameter, locking feature: patch threads.

Manufacturer part number NAS1741-3R20 for national stock number 5305000019768.

Datasheet

  • Product description

    Socket Head Cap Screw NSN 5305-00-001-9768.

  • MPN or Model

    NAS1741-3R20

  • 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
    Between 1.092 inches and 1.186 inches
  • Fastener Length
    Between 1.234 inches and 1.266 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.322 inches and 0.385 inches
  • Locking Feature
    Patch threads
  • Internal Drive Style
    Cross recess type 1
  • Thread Diameter
    0.190 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Hardness Rating
    34.0 rockwell c and 40.0 rockwell c
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches threads
  • Material
    Steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740
  • Material Specification
    Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-8503 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6049 military specification 5th material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416 type 2 class 3 federal specification all treatment responses
  • Thread Series Designator
    Unjf
  • Specification Data
    80205-nas1741 professional/industrial association standard
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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 5305000019768

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1741-3R20 National Aerospace Standards
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