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Close Tolerance Bolt NSN 5306-01-034-6978

Item Description

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

NSN 5306-01-034-6978 NSN: 5306-01-034-6978

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.400 inches and 0.450 inches
Fastener Length
Between 2.160 inches and 2.190 inches
Head Style
Hexagon
Head Height
Between 0.125 inches and 0.140 inches
Width Between Flats
Between 0.430 inches and 0.439 inches
Hole Diameter
0.046 inches
Grip Diameter
Between 0.2490 inches and 0.2495 inches
Thread Diameter
0.250 inches
Grip Length
Between 1.740 inches and 1.760 inches
Hole Quantity
3
Hole Type
Drilled
Thready Qty Per Inch (tpi)
28
Hole Configuration Style
Hexagon corners
Surface Finish
63.0 microinches bearing surface of head
Material
Titanium alloy uns r56400
Material Specification
Ams4967 assn standard single material response
Thread Series Designator
Unjf
Specification Data
80205-nas674 professional/industrial association standard
FSC
5306 Bolts
NIIN
010346978
NSN
5306010346978

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NAS674V28H
Cage Code:
80205
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8109900000
  • NAICS: 331491
  • SITC: 69987
  • Description: Zirconium and articles thereof nesoi
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5306-01-034-6978
What are the manufacturers of nsn 5306010346978?
Does this nsn 5306010346978 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5306010346978
An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. the head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. for items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. for items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.
Does nsn 5306010346978 contain any precious metals?
Precious metal content is unknown.
Does nsn 5306010346978 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5306010346978?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
27851
FIIG:
A003B0
App. Key:
BC
Cond. Code:
1
Status:
A

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