Model: 742578-1

Externally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.295 inches
Fastener Length
0.500 inches
Head Style
Hexagon
Head Height
0.140 inches
Width Between Flats
Between 0.364 inches and 0.376 inches
Hole Diameter
Between 0.031 inches and 0.052 inches
First Diameter From Head
0.142 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.125 inches
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Hardness Rating
33.0 rockwell c and 38.0 rockwell c
Hole Configuration Style
Hexagon flats
Externally Relieved Body Diameter Quantity
1
Material
Steel comp 410
Material Specification
Qq-s-763 federal specification single material response
Thread Series Designator
Unjf
NSN
5306-01-215-5186
Part Number
742578-1
Description
Bolt,externally Relieved Body
CAGE
73030

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 742578-1 NSN 5306-01-215-5186

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
574
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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