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NSN 5306-01-377-7278

Close Tolerance Hex Head Bolt

About this product

1.982 inches fastener length, spline extended washer head style, between 0.270 inches and 0.290 inches head height, extended washer diameter: between 0.470 inches and 0.480 inches .

Manufacturer part number S343-4-24 for national stock number 5306013777278.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-377-7278.

  • MPN or Model

    S343-4-24

  • 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 0.298 inches and 0.399 inches
  • Fastener Length
    1.982 inches
  • Head Style
    Spline extended washer
  • Head Height
    Between 0.270 inches and 0.290 inches
  • Extended Washer Diameter
    Between 0.470 inches and 0.480 inches
  • Extended Washer Thickness
    Between 0.162 inches and 0.182 inches
  • Grip Diameter
    Between 0.2480 inches and 0.2485 inches
  • Head Minor Diameter
    Between 0.297 inches and 0.312 inches
  • Thread Diameter
    0.250 inches
  • Grip Length
    1.500 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    220000 pounds per square inch
  • Material
    Steel comp xm-13
  • Material Specification
    Ams 5629 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment response
  • Thread Series Designator
    Unf
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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 5306013777278

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
S343-4-24 Huck International, Inc.
VS3190-4-24 Arconic Global Fasteners & Rings,
ST3M753-4-24 Boeing Company, The
VFK600-4-24 Valley-todeco, Inc.
PBF 1267 Sps Technologies, Llc
11829-4-24 Reid Products Inc.
MB156-4-24 Hi-shear Corporation
MB156-4-24 Lisi Aerospace Canada Corp
AIC763-4-24 Sps Technologies, Llc
12897-4-24 Sps Technologies, Llc
VS3190-4-24 Alcoa Global Fasteners, Inc.
S343-4-24 Huck Intl Inc
10116274 Nimikkeistokeskus Ncb Finland
Stock Check
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