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NSN 5305-01-430-5480

High Torque Screw

About this product

Between 1.200 inches and 1.230 inches fastener length, flat countersunk head style, between 0.464 inches and 0.507 inches head diameter, grip diameter: between 0.248 inches and 0.249 inches .

Manufacturer part number NAS1580A4T13Y for national stock number 5305014305480.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-430-5480.

  • MPN or Model

    NAS1580A4T13Y

  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.378 inches and 0.428 inches
  • Fastener Length
    Between 1.200 inches and 1.230 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.464 inches and 0.507 inches
  • Grip Diameter
    Between 0.248 inches and 0.249 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.802 inches and 0.822 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Steel comp 4140 secondary washer and steel comp 4340 secondary washer
  • 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 5305014305480

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1580A4T13Y National Aerospace Standards
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