Shear Bolt

EWSB926-4-20

EWSB926-4-20
(NSN) National Stock Number
5306-00-043-0566
Federal Supply Classification
5306 Bolts
Item Name Code
15903
Schedule B Code
7318152000
Summary

3a thread class, right-hand thread direction, 0.293 inches minimum thread length, 1.543 inches nominal fastener length, double hexagon head style, 0.154 inches minimum and 0.174 inches maximum head height

DAC HCC DMIL RNCC
5 - - C
RNVC SADC MSDS RNAAC
1 AC - KE
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
0.293 inches minimum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
1.543 inches nominal
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
double hexagon
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Height
0.154 inches minimum and 0.174 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
0.430 inches minimum and 0.439 inches maximum
Details None.
Grip Diameter
0.2483 inches minimum and 0.2492 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
0.076 inches nominal 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
0.250 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
1.240 inches minimum and 1.260 inches maximum
Details A measurement of the longest dimension of the grip,in distinction from width.
Thread Quantity Per Inch
28
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.
Distance From Head Largest Bearing Surface To Shank Hole Center
1.418 inches nominal first hole
Details The distance from the shank hole centerline to the largest bearing surface of the head.
Material
steel overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
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
BM90156-4-20 17446 5 - 5 2 - ZZ
AIC926-4-20 06725 5 - 5 2 - KZ
EWSB926-4-20 80539 1 - 5 2 - KE
EWSB926-4A20 80539 5 - 3 2 - KZ
VS2106C4S20 92215 5 - 5 2 - KZ
BM90156-4-20 97928 5 - 5 9 - KZ
GB511A4-20A 26512 4 - 5 2 - KE
EWSB926-4-20 56878 1 - 5 9 - KE
EWSB926-4A20 56878 5 - 5 9 - KZ
C878-4-20 81755 2 - 7 2 - KZ
BACB30EK4-20C 81205 2 - 7 2 - KZ
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
ALTA PRODUCTS CO INC
CAGE: 56876
PARAMOUNT , CA , 90723-4008
UNITED STATES
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FAQs
Frequently asked questions for NSN 5306-00-043-0566
What is the NIIN of the NSN 5306-00-043-0566?
The National Item Identification Number (NIIN) of the NSN 5306-00-043-0566 is 00-043-0566
When the NSN 5306-00-043-0566 was assigned to the Federal Catalog?
It was assigned 57 years ago, on Thu, May 11, 1967
Does the NSN 5306-00-043-0566 contain any precious metals?
Type/content is unknown
Does the NSN 5306-00-043-0566 contain any hazardous material?
No data in HMIRS

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