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Externally Relieved Body Bolt NSN 5306-00-638-4744

Item Description

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.

NSN 5306-00-638-4744 NSN: 5306-00-638-4744

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.522 inches and 0.682 inches
Fastener Length
2.250 inches
Head Style
Hexagon
Head Height
0.188 inches
Width Between Flats
Between 0.492 inches and 0.502 inches
First Diameter From Head
Between 0.308 inches and 0.318 inches
Second Diameter From Head
Between 0.345 inches and 0.346 inches
Third Diameter From Head
Between 0.248 inches and 0.258 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.078 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
Between 1.490 inches and 1.550 inches
Distance From Largest Bearing Surface Of Head To End Of Third Diameter
Between 1.568 inches and 1.628 inches
Thread Diameter
0.312 inches
Thready Qty Per Inch (tpi)
24
Hardness Rating
26.0 rockwell c and 32.0 rockwell c
Externally Relieved Body Diameter Quantity
3
Material
Steel
Material Specification
Ems-85010 fscm 73342 mfr ref single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Ams 2400 assn standard single treatment response
Thread Series Designator
Unf
FSC
5306 Bolts
NIIN
006384744
NSN
5306006384744

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
6748959
Cage Code:
73342
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318152000
  • NAICS: 332722
  • SITC: 69421
  • Description: Bolts and bolts and their nuts or washers exported in the same shipment
  • End Use (Code 12110):
    Iron and steel products, other

Q & A

Frequently asked questions for NSN 5306-00-638-4744
What are the manufacturers of nsn 5306006384744?
Does this nsn 5306006384744 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5306006384744
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.
Does nsn 5306006384744 contain any precious metals?
Precious metal content is unknown.
Does nsn 5306006384744 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5306006384744?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
06675
FIIG:
A003B0
App. Key:
BF
Cond. Code:
1
Status:
A

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