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NSN 5306-01-536-4434

Close Tolerance Hex Head Bolt

About this product

Internal drive recess per nas 1800.

Manufacturer part number 3M1277E4D8A for national stock number 5306015364434.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-536-4434.

  • MPN or Model

    3M1277E4D8A

  • Schedule B
    7508.90.0000 (Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire))
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.410 inches and 0.440 inches
  • Fastener Length
    Between 0.910 inches and 0.940 inches
  • Head Style
    Fillister countersunk
  • Head Diameter
    Between 0.265 inches and 0.272 inches
  • Head Height
    0.057 inches
  • Grip Diameter
    Between 0.2646 inches and 0.2651 inches
  • End Application
    F/a-18 aircraft
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.490 inches and 0.510 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Criticality Code Justification
    Agav
  • Part Name Assigned By Controlling Agency
    Bolt, 100 degrees reduced head, gear drive recess, inconel 718 (125 ksi shear), 0.0156 inch oversize
  • Material
    Nickel alloy 718
  • Material Specification
    Ams 5662 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Mil-l-87132, type 1, gr b military specification single treatment response
  • Supplementary Features
    0.076 inch diameter cotter pin hole at the tip of the bolt 0.106 inch from the end
  • 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 5306015364434

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
3M1277E4D8A Boeing Company, The
TX1027E4D8XA Sps Technologies, Llc
TX1027E4D8XA Sps Technologies, Llc
TX1027E4D8XA Sps Technologies, Llc
TX1027E4D8XA Arconic Global Fasteners & Rings,
TX1027E4D8XA Hi-shear Corporation
TX1027E4D8XA Sps Technologies, Llc
TX1027E4D8XA Lisi Aerospace Canada Corp
11861E4D8A Reid Products Inc.
TX1027E4D8XA Sps Technologies Inc
3M1277E4D8A Valley-todeco, Inc.
3M1277E4D8A Saturn Fasteners Inc
3M1277E4D8A Heartland Precision Fasteners, Inc.
3M1277E4D8A B & B Specialties Inc.
3M1277E4D8A Fastener Innovation Technology, Inc.
3M1277E4D8A Houston Precision Fasteners I, Lp
3M1277E4D8A Camcar Llc
WC1277E4D8A West Coast Aerospace Inc
Stock Check
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