Model: 231B

Shoulder Bolt

Special Features:

Furnished with hex nut castellated and cotter pin

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.688 inches
Fastener Length
1.625 inches
Head Style
Hexagon
Head Height
0.156 inches
Width Between Flats
0.625 inches
Shoulder Diameter
0.500 inches first shoulder
Shoulder Length
0.750 inches first shoulder
Shank Unthreaded Hole Diameter
0.062 inches first hole
Thread Diameter
0.375 inches
Thready Qty Per Inch (tpi)
16
Distance From Head Largest Bearing Surface To Shank Hole Center
1.438 inches first hole
Shoulder Shape
Round first shoulder
Material
Steel
Thread Series Designator
Unc
NSN
5306-00-398-9152
Part Number
231B
Description
Bolt,shoulder
CAGE

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes thumbscrew.

Part 231B NSN 5306-00-398-9152

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04905
FIIG:
A003B0
Concept No.:
App. Key:
BY
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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
105000
UFC:
54080
LTL:
70.0
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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