Model: 389731

Externally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.430 inches and 0.510 inches
Fastener Length
Between 4.290 inches and 4.310 inches
Head Style
Hexagon
Head Height
Between 0.146 inches and 0.166 inches
Width Between Flats
Between 0.430 inches and 0.439 inches
Shank Unthreaded Hole Diameter
0.070 inches all holes
First Diameter From Head
Between 0.249 inches and 0.250 inches
Second Diameter From Head
Between 0.194 inches and 0.198 inches
Third Diameter From Head
Between 0.249 inches and 0.250 inches
Fourth Diameter From Head
Between 0.194 inches and 0.198 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.415 inches and 0.435 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
Between 1.330 inches and 1.350 inches
Distance From Largest Bearing Surface Of Head To End Of Third Diameter
Between 1.850 inches and 1.870 inches
Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter
Between 3.280 inches and 3.300 inches
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Distance From Head Largest Bearing Surface To Shank Hole Center
4.185 inches all holes
Externally Relieved Body Diameter Quantity
3
Material
Stainless steel
Material Specification
Ams5625 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Ams 2400 assn standard single treatment response
Thread Series Designator
Unf
NSN
5306-00-739-3340
Part Number
389731
Description
Bolt,externally Relieved Body
CAGE
57472

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 389731 NSN 5306-00-739-3340

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

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:
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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