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Close Tolerance Bolt

Model BACB30LJ7-12

Quick Information about BACB30LJ7-12

3a thread class, right-hand , 0.541 inches thread length, 8.031 inches fastener length, dished hexagon head style, 0.204 inches head height

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Product Details

  • NSN:
    5306-01-539-1656 (5306015391656)
  • Thread Direction:
    Right-hand
  • Thread Length:
    0.541 inches
  • Fastener Length:
    Between 8.031 inches and 8.051 inches
  • Head Style:
    Dished hexagon
  • Head Height:
    Between 0.204 inches and 0.234 inches
  • Width Flats:
    Between 0.679 inches and 0.690 inches
  • Grip Diameter:
    Between 0.4354 inches and 0.4360 inches
  • Point Length:
    0.062 inches
  • Point Style:
    Flat
  • End Application:
    Boeing model 707
  • Thread Diameter:
    0.4375 inches
  • Grip Length:
    Between 7.490 inches and 7.510 inches
  • Thready (tpi):
    20
  • Hole Style:
    Hexagon corners
  • Part Agency:
    Bolt, hex head, 93 ksi shear, short thread, a286, nonlocking and self-locking
  • Color:
    Green
  • Material Specification:
    Ams5737 assn standard single material response or ams5853 assn standard single material response
  • Surface Specification:
    Ams-qq-p-416 assn standard 1st treatment response
  • Schedule B Code:
    7318152000

Classification

Bolts and bolts and their nuts or washers exported in the same shipment

Definition 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.

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
27851
FIIG:
A003B0
Concept No.:
App. Key:
BC
Cond. Code:
1
Status:
A

Part Materials

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

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