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NSN 5306-01-049-4051

Close Tolerance Hex Head Bolt

About this product

Between 1.689 inches and 1.719 inches fastener length, double hexagon head style, between 0.177 inches and 0.197 inches head height, width between flats: between 0.492 inches and 0.502 inches .

Manufacturer part number BACB30LT5U20 for national stock number 5306010494051.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-049-4051.

  • MPN or Model

    BACB30LT5U20

  • 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 0.429 inches and 0.479 inches
  • Fastener Length
    Between 1.689 inches and 1.719 inches
  • Head Style
    Double hexagon
  • Head Height
    Between 0.177 inches and 0.197 inches
  • Width Between Flats
    Between 0.492 inches and 0.502 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • End Application
    Aircraft, awacs, e-3a
  • Thread Diameter
    0.312 inches
  • Grip Length
    Between 1.240 inches and 1.260 inches
  • Thready Qty Per Inch (tpi)
    24
  • Surface Finish
    32.0 microinches threads
  • Material
    Iron alloy 660
  • Material Specification
    Ams5737 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment response
  • Thread Series Designator
    Unjf
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 5306010494051

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30LT5U20 The Boeing Company
BACB30LT5U20 Sps Technologies, Llc
BACB30LT5U20 Valley-todeco, Inc.
BACB30LT5U20 Federal Manufacturing Corporation
BACB30LT5U20 Huck International, Inc.
BACB30LT5U20 Sps Technologies, Llc
BACB30LT5U20 Sps Technologies, Llc
BACB30LT5U20 Arconic Global Fasteners & Rings,
BACB30LT5U20 Textron Fastening Systems
BACB30LT5U20 Huck Intl Inc
Stock Check
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