Model: 343-670

Internal Wrenching Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.165 inches and 0.195 inches
Fastener Length
0.500 inches
Head Style
Flat chamfer
Head Diameter
Between 0.178 inches and 0.183 inches
Head Height
Between 0.109 inches and 0.112 inches
First Diameter From Head
Between 0.074 inches and 0.081 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.305 inches and 0.335 inches
Internal Drive Style
Hexagon
Thread Diameter
0.112 inches
Width Across Flats
Between 0.078 inches and 0.079 inches
Thready Qty Per Inch (tpi)
40
Material
Stainless steel
Surface Treatment
Passivate
Surface Treatment Specification
197-117, fscm 90073 mfr ref single treatment response
Thread Series Designator
Unc
NSN
5306-00-438-4087
Part Number
343-670
Description
Bolt,internal Wrenching
CAGE
90073

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Part 343-670 NSN 5306-00-438-4087

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06666
FIIG:
A003B0
Concept No.:
App. Key:
BM
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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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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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