NSN 5305-01-643-3347

Button Head Socket Screw

About this product

4.625 inches fastener length, flat chamfer head style, between 0.550 inches and 0.562 inches head diameter, head height: between 0.368 inches and 0.375 inches .

Manufacturer part number NAS1351N6H74 for national stock number 5305016433347.


  • Product description

    Socket Head Cap Screw NSN 5305-01-643-3347.

  • MPN or Model


  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
  • Thread Direction
  • Thread Length
    1.250 inches
  • Fastener Length
    4.625 inches
  • Head Style
    Flat chamfer
  • Head Diameter
    Between 0.550 inches and 0.562 inches
  • Head Height
    Between 0.368 inches and 0.375 inches
  • Hole Diameter
    Between 0.103 inches and 0.123 inches
  • Internal Drive Style
  • Thread Diameter
    0.375 inches
  • Width Across Flats
    Between 0.312 inches and 0.316 inches
  • Hole Quantity
  • Hole Type
  • Thready Qty Per Inch (tpi)
  • Part Name Assigned By Controlling Agency
    Screw cap socket head
  • Material
    Iron alloy 660
  • Thread Series Designator
More from these suppliers
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

Pricing and Availability

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NSN 5305016433347

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1351N6H74 National Aerospace Standards
Stock Check
Availability for this item was last checked on 02/01/23. The quantities and conditions available at the time were:
  • NE: 5