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NSN 5305-01-603-8742

High Torque Screw

About this product

Between 1.076 inches and 1.106 inches fastener length, flat countersunk head style, between 0.3504 inches and 0.3988 inches head diameter, grip diameter: between 0.2646 inches and 0.2651 inches .

Manufacturer part number NAS1581C4T11X for national stock number 5305016038742.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-603-8742.

  • MPN or Model

    NAS1581C4T11X

  • 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
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.403 inches
  • Fastener Length
    Between 1.076 inches and 1.106 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.3504 inches and 0.3988 inches
  • Grip Diameter
    Between 0.2646 inches and 0.2651 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.678 inches and 0.698 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    3145 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Part Name Assigned By Controlling Agency
    Bolt, shear, 100 degrees flush reduced head, offset cruciform, offset cruciform-ribbed & dt slot, 95 ksi fsu
  • Material
    Stainless steel
  • Material Specification
    Cres 286 conform ams2700, ams5732, ams5737 or ams5853 national std/spec single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Passivate iaw ams2700 method 1, type 2 or 8, class 1 national std/spec 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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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1581C4T11X National Aerospace Standards
Stock Check
Availability for this item was last checked on 05/11/22. The quantities and conditions available at the time were:
  • NE: 94