Shear Bolt

NAS1271-4

NAS1271-4
(NSN) National Stock Number
5306-00-481-6509
Federal Supply Classification
5306 Bolts
Item Name Code
15903
Schedule B Code
8109900000
Summary

3a thread class, right-hand thread direction, 0.460 inches minimum and 0.510 inches maximum thread length, 0.720 inches minimum and 0.750 inches maximum fastener length, double hexagon w/hole head style, 0.290 inches minimum and 0.310 inches maximum head height

DAC HCC DMIL RNCC
4 - - 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
0.460 inches minimum and 0.510 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
0.720 inches minimum and 0.750 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
double hexagon w/hole
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Height
0.290 inches minimum and 0.310 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
0.306 inches minimum and 0.315 inches maximum
Details None.
Extended Washer Diameter
0.428 inches minimum and 0.438 inches maximum
Details None.
Extended Washer Thickness
0.059 inches minimum and 0.079 inches maximum
Details None.
Grip Diameter
0.2485 inches minimum and 0.2495 inches maximum
Details The length of a straight line which passes through the center of the grip,and terminates at the 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
0.240 inches minimum and 0.260 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.
Material
titanium alloy uns r54520 overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
nas621,comp 6al-4v assn std single material response overall
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Thread Series Designator
unf
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.
Specification/Standard Data
80205-nas1271 professional/industrial association standard
Details The document designator of the specification or standard which established the item of supply.
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
NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
CAGE: 80205
ARLINGTON , VA , 22209
UNITED STATES
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FAQs
Frequently asked questions for NSN 5306-00-481-6509
What is the NIIN of the NSN 5306-00-481-6509?
The National Item Identification Number (NIIN) of the NSN 5306-00-481-6509 is 00-481-6509
When the NSN 5306-00-481-6509 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Mon, Sep 21, 1970
Does the NSN 5306-00-481-6509 contain any precious metals?
Type/content is unknown
Does the NSN 5306-00-481-6509 contain any hazardous material?
No data in HMIRS

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