Close Tolerance Bolt

68485-10A024

68485-10A024
(NSN) National Stock Number
5306-00-007-2978
Federal Supply Classification
5306 Bolts
Item Name Code
27851
Schedule B Code
7318152000
Summary

3a thread class, right-hand thread direction, 0.691 inches minimum and 0.758 inches maximum thread length, 2.201 inches minimum and 2.248 inches maximum fastener length, double hexagon head style, 0.340 inches minimum and 0.360 inches maximum head height

DAC HCC DMIL RNCC
5 - - 5
RNVC SADC MSDS RNAAC
9 - - TU
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
0.691 inches minimum and 0.758 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
2.201 inches minimum and 2.248 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
0.340 inches minimum and 0.360 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
0.928 inches minimum and 0.940 inches maximum
Details None.
Grip Diameter
0.6230 inches minimum and 0.6240 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
0.625 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
1.490 inches minimum and 1.510 inches maximum
Details A measurement of the longest dimension of the grip,in distinction from width.
Thread Quantity Per Inch
18
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Surface Finish
32.0 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
32.0 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 h11 overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Surface Treatment
cadmium overall and nickel 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.
Surface Treatment Document And Classification
ams 2416 assn std all treatment responses overall and stsb001,fscm 56878 mfr ref all treatment responses 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
68485-10A024 56878 5 - 5 9 - TU
68485-10A24 56878 5 - 3 2 - 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
SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA
CAGE: 80539
SANTA ANA , CA , 92705-5414
UNITED STATES
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FAQs
Frequently asked questions for NSN 5306-00-007-2978
What is the NIIN of the NSN 5306-00-007-2978?
The National Item Identification Number (NIIN) of the NSN 5306-00-007-2978 is 00-007-2978
When the NSN 5306-00-007-2978 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Fri, Jun 30, 1972
Does the NSN 5306-00-007-2978 contain any precious metals?
Type/content is unknown
Does the NSN 5306-00-007-2978 contain any hazardous material?
No data in HMIRS

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