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NSN 5305-01-576-4089

High Torque Screw

About this product

2.588 inches fastener length, flat countersunk head style, between 0.297 inches and 0.305 inches head diameter, grip diameter: 0.244 inches.

Manufacturer part number NAS1993C36T for national stock number 5305015764089.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-576-4089.

  • MPN or Model

    NAS1993C36T

  • 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
    0.338 inches
  • Fastener Length
    2.588 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.297 inches and 0.305 inches
  • Grip Diameter
    0.244 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • End Application
    Nimrod mra4; nimrod 2000
  • Thread Diameter
    0.190 inches
  • Grip Length
    2.250 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    108000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Part Name Assigned By Controlling Agency
    Bolt, flat, 100 degree reduced head, torq-set and hi-torque, 108 ksi shear
  • Material
    Stainless steel
  • Material Specification
    Ams 5731 or ams 5737, a0286 (566286) except heat treat to 180 ksi min assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal standard single treatment response
  • Thread Series Designator
    Unjf
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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 5305015764089

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1993C36T National Aerospace Standards
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