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NSN 5305-01-406-7906

High Torque Screw

About this product

Between 0.980 inches and 1.010 inches fastener length, flat countersunk head style, between 0.477 inches and 0.507 inches head diameter, grip diameter: between 0.2485 inches and 0.2495 inches .

Manufacturer part number C7984-4-10R for national stock number 5305014067906.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-406-7906.

  • MPN or Model

    C7984-4-10R

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.345 inches and 0.395 inches
  • Fastener Length
    Between 0.980 inches and 1.010 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.477 inches and 0.507 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.615 inches and 0.635 inches
  • Thready Qty Per Inch (tpi)
    28
  • Hardness Rating
    46.0 rockwell c and 49.0 rockwell c
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Steel comp h11
  • Surface Treatment
    Cadmium
  • Thread Series Designator
    Unjf
  • Specification Data
    81755-c7984-4-10r professional/industrial association specification
More from these suppliers
Close Tolerance Screw

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Mechanic Bill explains High Torque Screw

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NSN 5305014067906

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
C7984-4-10R Lockheed Martin Corporation
AIC984-4-10R Sps Technologies, Llc
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