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NSN 5305-00-283-7506

High Torque Screw

About this product

Between 1.632 inches and 1.678 inches fastener length, flat countersunk head style, between 0.497 inches and 0.507 inches head diameter, grip diameter: between 0.2797 inches and 0.2807 inches .

Manufacturer part number HS2623-4Z20 for national stock number 5305002837506.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-283-7506.

  • MPN or Model

    HS2623-4Z20

  • 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
    Between 0.372 inches and 0.438 inches
  • Fastener Length
    Between 1.632 inches and 1.678 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.497 inches and 0.507 inches
  • Grip Diameter
    Between 0.2797 inches and 0.2807 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 1.240 inches and 1.260 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    100.0 degrees
  • Material
    Steel
  • Material Specification
    23-105 fscm 76301 mfr ref single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Ps 13145 fscm 76301 mfr ref single treatment response
  • Thread Series Designator
    Unjf
  • Specification Data
    76301-st3-547 manufacturers standard
More from these suppliers
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 5305002837506

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HS2623-4Z20 Huck International, Inc.
HT308-4-20 Hi-shear Corporation
66904H4-20 Sps Technologies, Llc
HT308-4-20 Lisi Aerospace Canada Corp
ST3M547-4-20 Boeing Company, The
HS2623-4Z20 Huck Intl Inc
66904H4-20 Sps Technologies Inc
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