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NSN 5306-00-321-9194

Close Tolerance Hex Head Bolt

About this product

Between 0.943 inches and 0.990 inches fastener length, double hexagon head style, between 0.154 inches and 0.174 inches head height, width between flats: between 0.430 inches and 0.439 inches .

Manufacturer part number BM17019-4-9 for national stock number 5306003219194.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-00-321-9194.

  • MPN or Model

    BM17019-4-9

  • 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 0.371 inches and 0.438 inches
  • Fastener Length
    Between 0.943 inches and 0.990 inches
  • Head Style
    Double hexagon
  • Head Height
    Between 0.154 inches and 0.174 inches
  • Width Between Flats
    Between 0.430 inches and 0.439 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.552 inches and 0.572 inches
  • Thready Qty Per Inch (tpi)
    28
  • Material
    Stainless steel
  • 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 5306003219194

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BM17019-4-9 Huck International, Inc.
S353-4-9 Huck International, Inc.
VS3204-4-9 Arconic Global Fasteners & Rings,
AIC753-4-9 Sps Technologies, Llc
PFB1253-4-9 Sps Technologies, Llc
S11-1060-4-9 Sonic Industries Inc.
VAL23029-4-9 Valley-todeco, Inc.
109453-4-9 Sps Technologies, Llc
MB61-4-9 Hi-shear Corporation
US3204-4-9 Alcoa Global Fasteners, Inc.
MB61-4-9 Lisi Aerospace Canada Corp
MB61-4-9 Alcoa Fastening Systems
US3204-4-9 Alcoa Fastening Systems
MA5453-4-9 Abounding Security Inc
11825-4-9 Reid Products Inc.
ST3M453-4-9 Boeing Company, The
KS3020-4-9 Kenaloy Products Inc Sub
109453-4-9 Sps Technologies Inc
S353-4-9 Huck Intl Inc
BM17019-4-9 Huck Intl Inc
VS3204-4-9 Alcoa Global Fasteners, Inc.
GS1016-4-9 B & B Specialties Inc.
Stock Check
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