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NSN 5305-01-376-0746

High Torque Screw

About this product

0.939 inches fastener length, pan head style, between 0.597 inches and 0.612 inches head diameter, head height: between 0.176 inches and 0.183 inches .

Manufacturer part number NAS1218-5-7P for national stock number 5305013760746.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-376-0746.

  • MPN or Model

    NAS1218-5-7P

  • 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
    0.501 inches
  • Fastener Length
    0.939 inches
  • Head Style
    Pan
  • Head Diameter
    Between 0.597 inches and 0.612 inches
  • Head Height
    Between 0.176 inches and 0.183 inches
  • Grip Diameter
    Between 0.3110 inches and 0.3120 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.312 inches
  • Grip Length
    Between 0.428 inches and 0.448 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Hardness Rating
    36.0 rockwell c and 40.0 rockwell c
  • Surface Finish
    32.0 microinches threads
  • Material
    Steel comp 4140 or steel comp e4340 or steel comp 8740
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416, ty2 cl2 federal specification single treatment response
  • 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 5305013760746

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1218-5-7P Valley-todeco, Inc.
NAS1218-5-7P Sps Technologies, Llc
NAS1218-5-7P Arconic Global Fasteners & Rings,
NAS1218-5-7P National Aerospace Standards
NAS1218-5-7P Alcoa Global Fasteners, Inc.
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