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NSN 5305-01-545-4649

High Torque Screw

About this product

Between 0.722 inches and 0.752 inches fastener length, flat countersunk head style, between 0.497 inches and 0.507 inches head diameter, locking feature: pellet threads.

Manufacturer part number NAS1164E5N for national stock number 5305015454649.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-545-4649.

  • MPN or Model

    NAS1164E5N

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.425 inches
  • Fastener Length
    Between 0.722 inches and 0.752 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.497 inches and 0.507 inches
  • Locking Feature
    Pellet threads
  • Grip Diameter
    Between 0.248 inches and 0.249 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    0.312 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Plastic locking feature
  • 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 5305015454649

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1164E5N National Aerospace Standards
6391094 FIND 034 Naval Sea Systems Command
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