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NSN 5305-01-268-4911

High Torque Screw

About this product

0.719 inches fastener length, fillister countersunk head style, between 0.390 inches and 0.395 inches head diameter, head height: 0.015 inches .

Manufacturer part number HT4053-4-4A for national stock number 5305012684911.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-268-4911.

  • MPN or Model

    HT4053-4-4A

  • 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)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.469 inches
  • Fastener Length
    0.719 inches
  • Head Style
    Fillister countersunk
  • Head Diameter
    Between 0.390 inches and 0.395 inches
  • Head Height
    0.015 inches
  • Grip Diameter
    Between 0.249 inches and 0.250 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.250 inches
  • Grip Length
    0.250 inches
  • Thready Qty Per Inch (tpi)
    3a
  • Countersink Angle
    100.0 degrees
  • Material
    Steel
  • Surface Treatment
    Aluminum
  • 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 5305012684911

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HT4053-4-4A Sps Technologies Inc
HT4053-4-4A Sps Technologies, Llc
HT4053-4-4A Arconic Global Fasteners & Rings,
HT4053-4-4A Huck International, Inc.
HT4053-4-4A Hi-shear Corporation
HT4053-4-4A Lisi Aerospace Canada Corp
HT4053-4-4A Fastener Innovation Technology, Inc.
HT4053-4-4A West Coast Aerospace Inc
HT4053-4-4A Sps Technologies Ltd Tj Brooks
ST3M740-4L4 Boeing Company, The
HT4053-4-4A Huck Intl Inc
10113616 Nimikkeistokeskus Ncb Finland
HT4053-4-4A Alcoa Global Fasteners, Inc.
Stock Check
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