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NSN 5305-01-545-5790

High Torque Screw

About this product

0.588 inches fastener length, flat countersunk head style, between 0.253 inches and 0.261 inches head diameter, grip diameter: between 0.162 inches and 0.163 inches .

Manufacturer part number NAS1992T4T for national stock number 5305015455790.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-545-5790.

  • MPN or Model

    NAS1992T4T

  • Schedule B
    8108.90.8000 (Other wrought titanium, nesoi)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.338 inches
  • Fastener Length
    0.588 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.253 inches and 0.261 inches
  • Grip Diameter
    Between 0.162 inches and 0.163 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.164 inches
  • Grip Length
    0.220 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Titanium alloy
  • Material Specification
    Ams 4971 assn standard single material response
  • Thread Series Designator
    Unjc
  • Specification Data
    80205-nas1992 professional/industrial association standard
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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 5305015455790

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1992T4T National Aerospace Standards
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