Model: 2057-1141

Externally Relieved Body Bolt

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.284 inches
Fastener Length
1.925 inches
Head Style
Hexagon
Head Height
0.200 inches
Width Between Flats
0.625 inches
First Diameter From Head
Between 0.4998 inches and 0.5001 inches
Second Diameter From Head
Between 0.3746 inches and 0.3748 inches
Third Diameter From Head
0.312 inches
Fourth Diameter From Head
Between 0.3746 inches and 0.3748 inches
Fifth Diameter From Head
0.238 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.050 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
1.279 inches
Distance From Largest Bearing Surface Of Head To End Of Third Diameter
1.435 inches
Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter
1.500 inches
Distance From Largest Bearing Surface Of Head To End Of Fifth Diameter
1.641 inches
Thread Diameter
0.312 inches
Thready Qty Per Inch (tpi)
18
Externally Relieved Body Diameter Quantity
5
Material
Steel comp 303
Surface Treatment
Passivate
Thread Series Designator
Unc
NSN
5306-00-674-9016
Part Number
2057-1141
Description
Bolt,externally Relieved Body
CAGE
3B150

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, internal wrenching and thumbscrew. See also screw, externally relieved body.

Part 2057-1141 NSN 5306-00-674-9016

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06675
FIIG:
A003B0
Concept No.:
App. Key:
BF
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:
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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