Model: 1788246

Externally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.375 inches
Fastener Length
1.031 inches
Head Style
Hexagon
Head Height
0.187 inches
Width Between Flats
0.375 inches
Hole Diameter
0.062 inches
First Diameter From Head
Between 0.308 inches and 0.310 inches
Second Diameter From Head
Between 0.199 inches and 0.201 inches
Third Diameter From Head
Between 0.308 inches and 0.310 inches
Fourth Diameter From Head
Between 0.182 inches and 0.187 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.219 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
Between 0.302 inches and 0.312 inches
Distance From Largest Bearing Surface Of Head To End Of Third Diameter
0.438 inches
Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter
0.656 inches
Thread Diameter
0.250 inches
Hole Quantity
2
Hole Type
Drilled
Thready Qty Per Inch (tpi)
20
Hole Configuration Style
Hexagon longitudinal hole
Externally Relieved Body Diameter Quantity
4
Material
Steel
Material Specification
Qq-s-634, composition 1015 through 1025 federal specification single material response
Surface Treatment
Phosphate
Surface Treatment Specification
Mil-p-16232, type m, class 2 military specification single treatment response
Thread Series Designator
Unc
NSN
5306-00-437-3572
Part Number
1788246
Description
Bolt,externally Relieved Body
CAGE
10001

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 1788246 NSN 5306-00-437-3572

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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