Close Tolerance Bolt

SS27576-3-13

SS27576-3-13
(NSN) National Stock Number
5306-00-429-1782
Federal Supply Classification
5306 Bolts
Item Name Code
27851
Schedule B Code
7318152000
Summary

3a thread class, 0.237 inches minimum and 0.319 inches maximum thread length, 1.185 inches minimum and 1.205 inches maximum fastener length, 0.095 inches minimum and 0.110 inches maximum head height, 0.367 inches minimum and 0.376 inches maximum width between flats, 0.1885 inches minimum and 0.1894 inches maximum grip diameter

DAC HCC DMIL RNCC
5 - - C
RNVC SADC MSDS RNAAC
1 AC - KE
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 Length
0.237 inches minimum and 0.319 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
1.185 inches minimum and 1.205 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 Height
0.095 inches minimum and 0.110 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
0.367 inches minimum and 0.376 inches maximum
Details None.
Grip Diameter
0.1885 inches minimum and 0.1894 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
0.070 inches minimum first hole and 0.080 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.
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.
Special Features
w/retaining element on shank
Details Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.
Material
steel overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
mil-b-83050 mil spec 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.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
AS194-3-13 84256 5 - 5 2 - KZ
106467-3-13 80539 5 - 5 2 - KZ
CA4510-3-13 29372 5 - 5 9 - KZ
MS27576-3-13 80205 E - 3 2 - ZZ
MS27576-3-13 96906 4 - 5 9 - 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
SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP
CAGE: 78286
STRATFORD , CT , 06614-1378
UNITED STATES
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FAQs
Frequently asked questions for NSN 5306-00-429-1782
What is the NIIN of the NSN 5306-00-429-1782?
The National Item Identification Number (NIIN) of the NSN 5306-00-429-1782 is 00-429-1782
When the NSN 5306-00-429-1782 was assigned to the Federal Catalog?
It was assigned 53 years ago, on Wed, Apr 21, 1971
Does the NSN 5306-00-429-1782 contain any precious metals?
Type/content is unknown
Does the NSN 5306-00-429-1782 contain any hazardous material?
No data in HMIRS

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