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NSN 5306-00-326-4625

Close Tolerance Hex Head Bolt

About this product

Between 2.037 inches and 2.067 inches fastener length, double hexagon w/hole 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 S371-6H23 for national stock number 5306003264625.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-00-326-4625.

  • MPN or Model

    S371-6H23

  • 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 0.589 inches and 0.639 inches
  • Fastener Length
    Between 2.037 inches and 2.067 inches
  • Head Style
    Double hexagon w/hole
  • 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 0.649 inches
  • Extended Washer Thickness
    Between 0.081 inches and 0.101 inches
  • Hole Diameter
    0.055 inches
  • Grip Diameter
    Between 0.3740 inches and 0.3745 inches
  • Thread Diameter
    0.375 inches
  • Grip Length
    Between 1.428 inches and 1.448 inches
  • Hole Quantity
    4
  • Hole Type
    Drilled
  • Thready Qty Per Inch (tpi)
    24
  • Hole Configuration Style
    Hexagon longitudinal hole
  • 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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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
S371-6H23 Huck International, Inc.
ST3M571-6H23 Sps Technologies, Llc
S11-1059-6H23 Sonic Industries Inc.
VAL23033-6H23 Valley-todeco, Inc.
74328-6H23 Sps Technologies, Llc
MB84-6H23 Hi-shear Corporation
VS3060-6H23 Arconic Global Fasteners & Rings,
BM3326-6H23 Huck International, Inc.
MB84-6H23 Lisi Aerospace Canada Corp
ST3M571-6H23 Boeing Company, The
ST3M571-6H23 Heartland Precision Fasteners, Inc.
ST3M571-6H23 Fastener Innovation Technology, Inc.
ST3M571-6H23 Reid Products Inc.
74328-6H23 Sps Technologies, Llc
AIC752-6H23 Sps Technologies, Llc
74328-6H23 Sps Technologies Inc
BM3326-6H23 Huck Intl Inc
S371-6H23 Huck Intl Inc
VS3060-6H23 Alcoa Global Fasteners, Inc.
ST3M571-6H23 Saturn Fasteners Inc
SLB253-6H23 Space-lok, Inc.
GS1030-6H23 B & B Specialties Inc.
ST3M571-6H23 Houston Precision Fasteners I, Lp
Stock Check
Availability for this item was last checked on 03/22/24. The quantities and conditions available at the time were:
  • NE: 328
  • NS: 5