Model: AB20550-7

Externally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.340 inches
Fastener Length
0.910 inches
Head Style
Hexagon
Head Height
Between 0.109 inches and 0.141 inches
Width Between Flats
Between 0.365 inches and 0.377 inches
First Diameter From Head
0.140 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.570 inches
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
125000 pounds per square inch
Externally Relieved Body Diameter Quantity
1
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 431
Material Specification
Mil-s-18732 military specification single material response
Surface Treatment
Passivate
Thread Series Designator
Unf
NSN
5306-00-818-3162
Part Number
AB20550-7
Description
Bolt,externally Relieved Body
CAGE
12436

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 AB20550-7 NSN 5306-00-818-3162

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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