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NSN 5305-00-246-7449

High Torque Screw

About this product

Between 0.510 inches and 0.540 inches fastener length, flat countersunk undercut head style, between 0.377 inches and 0.384 inches head diameter, head height: between 0.058 inches and 0.060 inches .

Manufacturer part number BM623-3-3 for national stock number 5305002467449.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-246-7449.

  • MPN or Model

    BM623-3-3

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    136500 - Metal NOI/metal Alloys NOI
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.250 inches and 0.362 inches
  • Fastener Length
    Between 0.510 inches and 0.540 inches
  • Head Style
    Flat countersunk undercut
  • Head Diameter
    Between 0.377 inches and 0.384 inches
  • Head Height
    Between 0.058 inches and 0.060 inches
  • Grip Diameter
    Between 0.1890 inches and 0.1895 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.192 inches
  • Grip Length
    Between 0.178 inches and 0.198 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Countersink Angle
    100.0 degrees
  • Surface Finish
    32.0 microinches threads
  • Material
    Titanium alloy uns r54520
  • Material Specification
    Nas621, comp 6al-4v assn standard single material 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 5305002467449

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BM623-3-3 Huck International, Inc.
C623-3-3 Lockheed Martin Corporation
C623-3-3 Sps Technologies, Llc
C623-3-3 Arconic Global Fasteners & Rings,
C623-3-3 Sps Technologies, Llc
C623-3-3 Hi-shear Corporation
C623-3-3 Alcoa Global Fasteners, Inc.
C623-3-3 Textron Fastening Systems
C623-3-3 Lisi Aerospace Canada Corp
C623-3-3 Huck Intl Inc
BM623-3-3 Huck Intl Inc
AIC1024-3-3 Sps Technologies, Llc
652478-3-3 Sps Technologies, Llc
HR102-3-3 Hi-shear Corporation
VT1043-3-3 Alcoa Global Fasteners, Inc.
CS92641-3-3 Textron Fastening Systems
AIC1024V3-3 Sps Technologies, Llc
C623-3-3 Lockheed Martin Corporation
C623-3-3 Sps Technologies, Llc
C623-3-3 Arconic Global Fasteners & Rings,
C623-3-3 Sps Technologies, Llc
C623-3-3 Hi-shear Corporation
C623-3-3 Alcoa Global Fasteners, Inc.
C623-3-3 Textron Fastening Systems
C623-3-3 Lisi Aerospace Canada Corp
BM623-3-3 Huck Intl Inc
C623-3-3 Huck Intl Inc
AIC1024-3-3 Sps Technologies, Llc
652478-3-3 Sps Technologies, Llc
HR102-3-3 Hi-shear Corporation
VT1043-3-3 Alcoa Global Fasteners, Inc.
CS92641-3-3 Textron Fastening Systems
AIC1024V3-3 Sps Technologies, Llc
Stock Check
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