Model: 3447-9-20

Machine Bolt

Special Features:

Flat countersunk drilling of shank diameter 0.187in. Max.

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.911 inches
Fastener Length
Between 2.146 inches and 2.176 inches
Head Style
Spline extended washer
Head Height
Between 0.495 inches and 0.515 inches
Extended Washer Diameter
Between 1.037 inches and 1.047 inches
Extended Washer Thickness
Between 0.051 inches and 0.061 inches
Grip Diameter
Between 0.5605 inches and 0.5615 inches
Head Minor Diameter
Between 0.711 inches and 0.717 inches
Thread Diameter
0.562 inches
Grip Length
Between 1.240 inches and 1.260 inches
Features Provided
Finished head
Thready Qty Per Inch (tpi)
18
Min. Tensile Strength (psi)
180000 pounds per square inch
Minimum Yield Strength
108000 pounds per square inch
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches grip
Material
Nickel alloy 718
Material Specification
Ams 5662 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unjf
NSN
5306-01-435-5262
Part Number
3447-9-20
Description
Bolt,machine
CAGE
5M902

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 3447-9-20 NSN 5306-01-435-5262

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:
ESD:
MMAC:
BA
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093490
UFC:
50270
LTL:
50.0
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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