Close Tolerance Bolt

BM17028-6-39

BM17028-6-39
(NSN) National Stock Number
5306-00-541-9046
Federal Supply Classification
5306 Bolts
Item Name Code
27851
Schedule B Code
7318152000
Summary

3a thread class, right-hand thread direction, 0.374 inches minimum and 0.441 inches maximum thread length, 2.822 inches minimum and 2.869 inches maximum fastener length, double hexagon head style, 0.200 inches minimum and 0.220 inches maximum head height

DAC HCC DMIL RNCC
5 - - 3
RNVC SADC MSDS RNAAC
2 - - ZZ
Identification

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.

INC FIIG Concept Condition
27851 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
0.374 inches minimum and 0.441 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
2.822 inches minimum and 2.869 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
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Height
0.200 inches minimum and 0.220 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
0.553 inches minimum and 0.564 inches maximum
Details None.
Grip Diameter
0.3735 inches minimum and 0.3745 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 0.111 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.
End Item Identification
aircraft, phantom f-4
Details The national stock number or the identification information of the end equipment for which the item is a part.
Nominal Thread Diameter
0.375 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
2.428 inches minimum and 2.448 inches maximum
Details A measurement of the longest dimension of the grip,in distinction from width.
Thread Quantity Per Inch
24
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Distance From Head Largest Bearing Surface To Shank Hole Center
2.697 inches minimum first hole and 2.754 inches maximum 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.
Material Document And Classification
23-105 fscm 76301 mfr ref 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.
Surface Treatment
cadmium 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.
Surface Treatment Document And Classification
mac ps13145,mcdonnell douglas corp mfr ref single treatment response overall
Details The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
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
MB13-6D39 L4528 1 - 5 2 - ZZ
MB13-6D39 R1120 6 - 5 2 - ZG
MB13-6D39 C4293 3 - 5 2 - ZG
A1C244-6D39 06725 4 - 5 9 - 9Z
AIC244-6D39 06725 1 - 5 2 - SB
ST3M561-6D39 27624 4 - 5 2 - ZZ
ST3M561-6D39 1DN91 6 - 5 2 - 9Z
MB13-6D39 73197 1 - 5 2 - SB
ST3M561-6D39 92215 5 - 5 2 - ZZ
BM17028-6-39 97928 1 - 5 9 - SB
ST3M561-6D39 97928 5 - 5 9 - ZZ
ST3M561-6D39 76301 1 - 7 2 - SB
73992-6D39 56878 1 - 5 2 - SB
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
HUCK INTERNATIONAL, INC
CAGE: 17446
CARSON , CA , 90745-4201
UNITED STATES
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FAQs
Frequently asked questions for NSN 5306-00-541-9046
What is the NIIN of the NSN 5306-00-541-9046?
The National Item Identification Number (NIIN) of the NSN 5306-00-541-9046 is 00-541-9046
When the NSN 5306-00-541-9046 was assigned to the Federal Catalog?
It was assigned 50 years ago, on Wed, Oct 2, 1974
Does the NSN 5306-00-541-9046 contain any precious metals?
Type/content is unknown
Does the NSN 5306-00-541-9046 contain any hazardous material?
No data in HMIRS

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