Model: 78078-8-3

Machine Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.812 inches
Fastener Length
1.000 inches
Head Style
Pan no. 2
Head Diameter
Between 0.740 inches and 0.750 inches
Head Height
0.438 inches
Grip Diameter
Between 0.4347 inches and 0.4367 inches
End Application
Reconnaissance aircraft
Thread Diameter
0.500 inches
Grip Length
0.1875 inches
Thready Qty Per Inch (tpi)
20
Part Name Assigned By Controlling Agency
Bolt, internal wrenching, 160 ksi, alloy steel, 250 degrees f
Material
Steel
Surface Treatment
Cadmium
Thread Series Designator
Unf
NSN
5306-01-520-3807
Part Number
78078-8-3
Description
Bolt,machine
CAGE
56878

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 78078-8-3 NSN 5306-01-520-3807

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:
CRITL:
X

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Schedule B and Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

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

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