Shear Bolt

20-057-8-34D

20-057-8-34D
(NSN) National Stock Number
5306-01-047-9432
Federal Supply Classification
5306 Bolts
Item Name Code
15903
Schedule B Code
7318152000
Summary

3a thread class, right-hand thread direction, 0.710 inches minimum and 0.760 inches maximum thread length, 2.845 inches minimum and 2.875 inches maximum fastener length, hexagon head style, 0.250 inches minimum and 0.265 inches maximum head height

DAC HCC DMIL RNCC
A - - 3
RNVC SADC MSDS RNAAC
2 - - KZ
Identification

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

INC FIIG Concept Condition
15903 A003B0 - 1
Specifications
Thread Class
3a
Details A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
Thread Direction
right-hand
Details The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
Thread Length
0.710 inches minimum and 0.760 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
2.845 inches minimum and 2.875 inches maximum
Details The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.
Head Style
hexagon
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Height
0.250 inches minimum and 0.265 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
0.741 inches minimum and 0.752 inches maximum
Details None.
Grip Diameter
0.4985 inches minimum and 0.4995 inches maximum
Details The length of a straight line which passes through the center of the grip,and terminates at the circumference.
Shank Unthreaded Hole Diameter
0.106 inches minimum first hole and 0.116 inches maximum first hole
Details The length of a straight line which passes through the center of the shank unthreaded hole,and terminates at the inside circumference.
Nominal Thread Diameter
0.500 inches
Details The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
Grip Length
2.115 inches minimum and 2.135 inches maximum
Details A measurement of the longest dimension of the grip,in distinction from width.
Features Provided
finished head
Details Those features,not otherwise specified,which may be required for proper functioning of the item.
Thread Quantity Per Inch
20
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Minimum Tensile Strength
160000 pounds per square inch
Details The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
Hardness Rating
39.0 rockwell c minimum overall and 43.0 rockwell c maximum overall
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Distance From Head Largest Bearing Surface To Shank Hole Center
2.619 inches minimum first hole and 2.669 inches maximum first hole
Details The distance from the shank hole centerline to the largest bearing surface of the head.
Surface Finish
32.0 microinches threads
Details Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
Surface Finish
63.0 microinches bearing surface of head
Details Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
Surface Finish
63.0 microinches grip
Details Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
Material
steel comp e4340 overall or steel comp 4340 overall or steel comp 4140 overall or steel comp 8740 overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Surface Treatment
cadmium overall and chromate overall
Details The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
Thread Series Designator
unjf
Details A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
20-057-8-34D 1EM77 A - 5 9 - ZZ
20-057-8-34D 0K6Z0 A - 5 9 - ZZ
20-057-8-34D 17446 5 - 5 9 - ZZ
20-057-8-34D 06950 5 - 5 9 - KZ
20-057-8-34D 06725 A - 5 9 - ZZ
20-057-8-34D 27624 5 - 5 9 - KZ
20-057-8-34D 80539 5 - 5 9 - KZ
20-057-8-34D 64728 A - 5 9 - ZZ
20-057-8-34D 97928 5 - 5 9 - KZ
20-057-8-34D 0ZC92 A - 5 9 - ZZ
20-057-8-34D 56878 A - 5 9 - ZZ
20-057-8-34D 62384 A - 5 9 - ZZ
20-057-8-34D 0PTK6 A - 5 9 - ZZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
48950 - W -
RVC WCC TCC SHC
- 573 Z 9

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Manufacturer
BELL TEXTRON INC
CAGE: 97499
FORT WORTH , TX , 76118
UNITED STATES
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FAQs
Frequently asked questions for NSN 5306-01-047-9432
What is the NIIN of the NSN 5306-01-047-9432?
The National Item Identification Number (NIIN) of the NSN 5306-01-047-9432 is 01-047-9432
When the NSN 5306-01-047-9432 was assigned to the Federal Catalog?
It was assigned 47 years ago, on Fri, Sep 16, 1977
Does the NSN 5306-01-047-9432 contain any precious metals?
Type/content is unknown
Does the NSN 5306-01-047-9432 contain any hazardous material?
No data in HMIRS

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