Model: A781475

Externally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.172 inches and 0.219 inches
Fastener Length
Between 0.640 inches and 0.687 inches
Head Style
Hexagon
Head Height
0.219 inches
Width Between Flats
Between 0.428 inches and 0.440 inches
Hole Diameter
0.070 inches
First Diameter From Head
Between 0.246 inches and 0.249 inches
Second Diameter From Head
Between 0.196 inches and 0.206 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.230 inches and 0.240 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
0.468 inches
Thread Diameter
0.250 inches
Hole Quantity
6
Hole Type
Drilled
Thready Qty Per Inch (tpi)
28
Hole Configuration Style
Hexagon flats
Externally Relieved Body Diameter Quantity
2
Material
Steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4037 or steel comp 4140 or steel comp 4130
Material Specification
Mil-s-6049 military specification 1st material response or mil-s-6050 military specification 2nd material response or mil-s-6098 military specification 3rd material response or ams 6300 assn standard 4th material response or mil-s-5626 military specification 5th material response or mil-s-6758 military specification 6th material response
Thread Series Designator
Unf
NSN
5306-00-145-0770
Part Number
A781475
Description
Bolt,externally Relieved Body
CAGE
37695

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 A781475 NSN 5306-00-145-0770

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

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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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