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NSN 5305-01-253-4860

High Torque Screw

About this product

Between 0.828 inches and 0.875 inches fastener length, flat countersunk head style, between 0.456 inches and 0.508 inches head diameter, grip diameter: between 0.2485 inches and 0.2495 inches .

Manufacturer part number HT4027-4-6 for national stock number 5305012534860.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-253-4860.

  • MPN or Model

    HT4027-4-6

  • 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
    Between 0.828 inches and 0.875 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.456 inches and 0.508 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.365 inches and 0.385 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    7500 pounds per square inch
  • Countersink Angle
    100.0 degrees
  • Material
    Steel comp xm-13
  • Material Specification
    Ams5629 assn standard single material response
  • 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 5305012534860

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HT4027-4-6 Sps Technologies, Llc
WC4027-4-6 West Coast Aerospace Inc
HT4027-4-6 Hi-shear Corporation
HT4027-4-6 Arconic Global Fasteners & Rings,
HT4027-4-6 Lisi Aerospace Canada Corp
HT4027-4-6 Sps Technologies, Llc
HT4027-4-6 Alcoa Global Fasteners, Inc.
HT4027-4-6 Huck International, Inc.
HT4027-4-6 Huck Intl Inc
HT4027-4-6 Arconic Global Fasteners & Rings,
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