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NSN 5305-01-519-1513

High Torque Screw

About this product

Between 1.739 inches and 1.769 inches fastener length, flat countersunk head style, between 0.449 inches and 0.507 inches head diameter, thread diameter: 0.250 inches.

Manufacturer part number NAS1154E23 for national stock number 5305015191513.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-519-1513.

  • MPN or Model

    NAS1154E23

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Fastener Length
    Between 1.739 inches and 1.769 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.449 inches and 0.507 inches
  • Thread Diameter
    0.250 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Part Name Assigned By Controlling Agency
    Screw, machine-flat 100 degrees head, close tolerance, short thread, offset cruciform, 160 ksi
  • Material
    Iron alloy 660
  • Material Specification
    Ams 5737 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification 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 5305015191513

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1154E23 National Aerospace Standards
NAS1154E23 National Aerospace Standards
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