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NSN 5306-00-546-4839

Close Tolerance Hex Head Bolt

About this product

1.802 inches fastener length, double hexagon extended washer head style, between 0.378 inches and 0.398 inches head height, width between flats: between 0.430 inches and 0.439 inches .

Manufacturer part number ST3M571-6-19 for national stock number 5306005464839.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-00-546-4839.

  • MPN or Model

    ST3M571-6-19

  • 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
    0.614 inches
  • Fastener Length
    1.802 inches
  • Head Style
    Double hexagon extended washer
  • Head Height
    Between 0.378 inches and 0.398 inches
  • Width Between Flats
    Between 0.430 inches and 0.439 inches
  • Extended Washer Diameter
    Between 0.639 inches and 0.640 inches
  • Extended Washer Thickness
    Between 0.081 inches and 0.101 inches
  • Grip Diameter
    Between 0.3740 inches and 0.3745 inches
  • Thread Diameter
    0.375 inches
  • Grip Length
    1.188 inches
  • Thready Qty Per Inch (tpi)
    24
  • Material
    Stainless steel
  • Surface Treatment
    Passivate
  • Thread Series Designator
    Unjf
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Close Tolerance Bolt

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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 not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Mechanic Bill explains Close Tolerance Hex Head Bolt

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NSN 5306005464839

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST3M571-6-19 Boeing Company, The
MB84-6-19 Alcoa Fastening Systems
VS3060-6-19 Alcoa Fastening Systems
VAL23033-6-19 Valley-todeco, Inc.
MB84-6-19 Hi-shear Corporation
74328-6-19 Sps Technologies, Llc
MB84-6-19 Lisi Aerospace Canada Corp
AIC752-6-19 Sps Technologies, Llc
ST3M571-6-19 Sps Technologies, Llc
S11-1059-6-19 Sonic Industries Inc.
74328-6-19 Sps Technologies, Llc
VS3060-6-19 Alcoa Global Fasteners, Inc.
VS3060-6-19 Arconic Global Fasteners & Rings,
ST3M571-6-19 Heartland Precision Fasteners, Inc.
S371-6-19 Huck International, Inc.
BM3326-6-19 Huck International, Inc.
ST3M571-6-19 Fastener Innovation Technology, Inc.
ST3M571-6-19 Sps Technologies, Llc
BM3326-6-19 Huck Intl Inc
S371-6-19 Huck Intl Inc
GS1030-6-19 B & B Specialties Inc.
Stock Check
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