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NSN 5305-01-049-4056

High Torque Screw

About this product

Between 0.499 inches and 0.529 inches fastener length, flat countersunk head style, between 0.354 inches and 0.399 inches head diameter, grip diameter: between 0.2485 inches and 0.2495 inches .

Manufacturer part number BACB30LL4-17X for national stock number 5305010494056.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-049-4056.

  • MPN or Model

    BACB30LL4-17X

  • 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 0.364 inches and 0.414 inches
  • Fastener Length
    Between 0.499 inches and 0.529 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.354 inches and 0.399 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Grip Length
    Between 0.115 inches and 0.135 inches
  • Countersink Angle
    100.0 degrees
  • Specification Data
    81205-bacb30ll manufacturers standard
More from these suppliers
Close Tolerance Screw

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Mechanic Bill explains High Torque Screw

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NSN 5305010494056

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30LL4-17X Huck International, Inc.
BACB30LL4-2 Huck International, Inc.
BACB30LL4-2 The Boeing Company
BACB30LL4-2 Arconic Global Fasteners & Rings,
BACB30LL4-2 Sps Technologies, Llc
BACB30LL4-2 Hi-shear Corporation
BACB30LL4-2 Sps Technologies, Llc
BACB30LL4-2 Lisi Aerospace Canada Corp
BACB30LL4-17X Huck Intl Inc
BACB30LL4-2 Huck Intl Inc
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