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Close Tolerance Bolt NSN 5306-01-144-3908

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 5306-01-144-3908 NSN: 5306-01-144-3908

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 2.215 inches and 2.265 inches
Fastener Length
Between 5.037 inches and 5.067 inches
Head Style
Double hexagon w/hole
Head Height
Between 0.425 inches and 0.445 inches
Width Between Flats
Between 0.492 inches and 0.502 inches
Extended Washer Diameter
Between 0.740 inches and 0.750 inches
Extended Washer Thickness
Between 0.089 inches and 0.109 inches
Hole Diameter
Between 0.050 inches and 0.060 inches
Grip Diameter
Between 0.4365 inches and 0.4370 inches
Thread Diameter
0.438 inches
Grip Length
Between 2.802 inches and 2.822 inches
Hole Quantity
2
Hole Type
Drilled
Thready Qty Per Inch (tpi)
20
Hole Configuration Style
Double hexagon longitudinal hole
Special Features
Point on thd end 0.370 in. Lg by 15 deg
Material
Stainless steel
Material Specification
23-112 fscm 76301 mfr ref single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unjf
FSC
5306 Bolts
NIIN
011443908
NSN
5306011443908

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3M918-7H45
Cage Code:
17446
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 5306-01-144-3908
What are the manufacturers of nsn 5306011443908?
Does this nsn 5306011443908 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5306011443908
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 5306011443908 contain any precious metals?
No precious metal content.
Does nsn 5306011443908 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5306011443908?
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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