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NSN 5305-01-163-5785

High Torque Screw

About this product

Between 0.720 inches and 0.750 inches fastener length, flat countersunk head style, 0.452 inches head diameter, grip diameter: between 0.2490 inches and 0.2495 inches .

Manufacturer part number STD2159E15 for national stock number 5305011635785.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-163-5785.

  • MPN or Model

    STD2159E15

  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.480 inches and 0.540 inches
  • Fastener Length
    Between 0.720 inches and 0.750 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.452 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Internal Drive Style
    Slot
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.210 inches and 0.240 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Thread Series Designator
    Unf
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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 5305011635785

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
STD2159E15 British Aerospace North America Inc
STD2159E15 Naval Inventory Control Point
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