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Close Tolerance Bolt NSN 5306-01-027-1997

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 5306-01-027-1997 NSN: 5306-01-027-1997

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.425 inches
Fastener Length
Between 1.535 inches and 1.565 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
Grip Diameter
Between 0.2490 inches and 0.2495 inches
Thread Diameter
0.250 inches
Grip Length
Between 1.115 inches and 1.135 inches
Thready Qty Per Inch (tpi)
28
Surface Finish
63.0 microinches grip
Part Name Assigned By Controlling Agency
Navy special project
Material
Titanium alloy
Material Specification
Nas621 assn standard single material response
Thread Series Designator
Unjf
Specification Data
26512-gb511by4 manufacturers standard
FSC
5306 Bolts
NIIN
010271997
NSN
5306010271997

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
110185-4-19M
Cage Code:
56878
Status:
A
MSDS:
Part Number:
BM15016-4-18A
Cage Code:
17446
Status:
A
MSDS:
Part Number:
VEH160271-4M18
Cage Code:
06710
Status:
A
MSDS:
Part Number:
110185-4-18M
Cage Code:
80539
Status:
A
MSDS:
Part Number:
VS3117-4-18
Cage Code:
92215
Status:
A
MSDS:
Part Number:
GB511BY4M18
Cage Code:
06725
Status:
A
MSDS:
Part Number:
GB511BY4-18M
Cage Code:
26512
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 5306-01-027-1997
What are the manufacturers of nsn 5306010271997?
Does this nsn 5306010271997 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5306010271997
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 5306010271997 contain any precious metals?
Precious metal content is unknown.
Does nsn 5306010271997 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5306010271997?
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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