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Externally Relieved Body Bolt NSN 5306-01-218-8278

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 5306-01-218-8278 NSN: 5306-01-218-8278

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.540 inches and 0.620 inches
Fastener Length
Between 1.740 inches and 1.760 inches
Head Style
Dee chamfer
Head Height
Between 0.120 inches and 0.130 inches
Distance From Centerline To Flat
Between 0.234 inches and 0.240 inches
First Diameter From Head
Between 0.222 inches and 0.232 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 1.140 inches and 1.200 inches
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Askewed Head Angle
90.0 degrees
Externally Relieved Body Diameter Quantity
1
Special Features
Head chamfered 45 degree angle with min. 0.060 by max. 0.070 in.
Material
Nickel alloy 718
Thread Series Designator
Unjf
FSC
5306 Bolts
NIIN
012188278
NSN
5306012188278

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
9502M44P01
Cage Code:
07482
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7508900000
  • NAICS: 332999
  • SITC: 69975
  • Description: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5306-01-218-8278
What are the manufacturers of nsn 5306012188278?
Does this nsn 5306012188278 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5306012188278
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 5306012188278 contain any precious metals?
No precious metal content.
Does nsn 5306012188278 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5306012188278?
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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