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Internally Relieved Body Bolt NSN 5306-00-637-0203

Item Description

An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.

NSN 5306-00-637-0203 NSN: 5306-00-637-0203

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Features and Characteristics

Threads Per Inch
28 counterbore
Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.875 inches
Fastener Length
3.375 inches
Head Style
Dee chamfer
Head Diameter
1.125 inches
Head Height
0.250 inches
Distance From Centerline To Flat
Between 0.432 inches and 0.442 inches
Shank Unthreaded Hole Diameter
0.136 inches first hole
Concentric Hole Depth
1.875 inches
Concentric Hole Diameter
0.219 inches
Internal Thread Length
0.250 inches counterbore
Thread Diameter
0.625 inches
Thread Series
Unf counterbore
Internal Thread Direction
Right-hand counterbore
Thready Qty Per Inch (tpi)
18
Thread Size
0.250 inches counterbore
Distance From Head Largest Bearing Surface To Shank Hole Center
3.188 inches first hole
Internal Thread Class
2b counterbore
Material
Steel
Style Designator
Counterbore threaded
Thread Series Designator
Unf
FSC
5306 Bolts
NIIN
006370203
NSN
5306006370203

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
589539
Cage Code:
86403
Status:
A
MSDS:
Part Number:
S1259
Cage Code:
76255
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 5306-00-637-0203
What are the manufacturers of nsn 5306006370203?
Does this nsn 5306006370203 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5306006370203
An externally threaded fastener whose external threaded portion is of one nominal diameter. it has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. the concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. the head is designed to be held or driven by an external and/or internal driver. for items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.
Does nsn 5306006370203 contain any precious metals?
Precious metal content is unknown.
Does nsn 5306006370203 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5306006370203?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
06676
FIIG:
A003B0
App. Key:
BN
Cond. Code:
1
Status:
A

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