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Shear Bolt

Model 275B0407-20

Quick Information about 275B0407-20

3a thread class, right-hand , 0.651 inches thread length, 1.889 inches fastener length, double hexagon head style, 0.257 inches head height

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Product Details

  • NSN:
    5306-01-627-0278 (5306016270278)
  • Thread Direction:
    Right-hand
  • Thread Length:
    0.651 inches
  • Fastener Length:
    Between 1.889 inches and 1.936 inches
  • Head Style:
    Double hexagon
  • Head Height:
    0.257 inches
  • Width Flats:
    Between 0.678 inches and 0.689 inches
  • Grip Diameter:
    Between 0.4358 inches and 0.4367 inches
  • End Application:
    F-15sa
  • Thread Diameter:
    0.437 inches
  • Grip Length:
    1.250 inches
  • Thready (tpi):
    20
  • Min. (psi):
    110 pounds per square inch
  • Surface Finish:
    32.0 microinches bearing surface of head
  • Surface Finish:
    32.0 microinches threads
  • Part Agency:
    Bolt, shear
  • Material Specification:
    Ams 5853 federal specification single material response
  • Surface Specification:
    Qq-p-35 federal standard single treatment response
  • Schedule B Code:
    7508900000

Classification

Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)

Definition Shear Bolt

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15903
FIIG:
A003B0
Concept No.:
App. Key:
BX
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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