Model: 1237-5-12

Machine Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.467 inches
Fastener Length
Between 1.202 inches and 1.232 inches
Head Style
Spline drive shear head
Head Height
0.187 inches
Grip Diameter
Between 0.3110 inches and 0.3120 inches
Shank Unthreaded Hole Diameter
0.076 inches first hole and 0.086 inches first hole
Head Minor Diameter
Between 0.484 inches and 0.511 inches
End Application
C-17a aircraft
Thread Diameter
0.3125 inches
Grip Length
Between 0.740 inches and 0.760 inches
Thready Qty Per Inch (tpi)
24
Min. Tensile Strength (psi)
180000 pounds per square inch
Distance From Head Largest Bearing Surface To Shank Hole Center
1.347 inches first hole
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches grip
Part Name Assigned By Controlling Agency
Bolt, shear
Material
Nickel alloy 718
Material Specification
Ams5662 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unjf
NSN
5306-01-518-6792
Part Number
1237-5-12
Description
Bolt,machine
CAGE
06725

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

Part 1237-5-12 NSN 5306-01-518-6792

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01847
FIIG:
A003B0
Concept No.:
App. Key:
BR
Cond. Code:
1
Status:
A

Material Classification

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:
BA
CRITL:
X

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Schedule B and Export
  • Schedule B: 7508900000
  • SITC: 69975
  • End Use: Finished metal shapes
  • NAICS: 332999
  • USDA: 1

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

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