Hexagon Head Cap Screw

B1821BH044F100N

B1821BH044F100N
(NSN) National Stock Number
5305-00-709-8517
Federal Supply Classification
5305 Screws
Item Name Code
18257
Schedule B Code
7318152000
Summary

2a thread class, right-hand thread direction, 1.000 inches maximum thread length, 1.000 inches nominal fastener length, hexagon head style, 0.272 inches minimum and 0.291 inches maximum head height

DAC HCC DMIL RNCC
E - - 5
RNVC SADC MSDS RNAAC
9 - - ZZ
Identification

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

INC FIIG Concept Condition
18257 A003B0 - 1
Specifications
Thread Class
2a
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
1.000 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
1.000 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
hexagon
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Height
0.272 inches minimum and 0.291 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
0.612 inches minimum and 0.625 inches maximum
Details None.
Nominal Thread Diameter
0.438 inches
Details The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
Thread Quantity Per Inch
20
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Minimum Tensile Strength
150000 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.
Hardness Rating
32.0 rockwell c minimum overall and 38.0 rockwell c maximum overall
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Minimum Yield Strength
120000 pounds per square inch
Details The stress at which a material exhibits a specified limiting deviation from the proportionality of stress or strain.
Material
steel overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
sae gr 8 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.
Surface Treatment
zinc 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
astm b633 ty 2 sc 3 assn std 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
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.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
10469647 A486G 9 - 6 9 - WF
5305007098517 SCY13 9 - 5 9 - YP
181395 39VG9 5 - 3 2 - ZZ
181395 21450 1 - 5 9 - BF
181395 72915 3 - 5 9 - ZZ
FF-S-85 81348 E - 5 9 - KZ
AES01F438A00AW9A91 05047 E - 3 2 - ZZ
ASME B18.2.1 05047 E - 5 1 - ZZ
199-310 72741 E - C 1 - TU
MS90726-85 96906 X - 5 9 - XX
MS90727-85 96906 X - 5 9 - XX
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
48950 - W -
RVC WCC TCC SHC
- 713 Z 9

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Manufacturer
AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE
CAGE: 80204
WASHINGTON , DC , 20036-3804
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-00-709-8517
What is the NIIN of the NSN 5305-00-709-8517?
The National Item Identification Number (NIIN) of the NSN 5305-00-709-8517 is 00-709-8517
When the NSN 5305-00-709-8517 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Fri, Jan 1, 1960
Does the NSN 5305-00-709-8517 contain any precious metals?
Does not contain precious metal
Does the NSN 5305-00-709-8517 contain any hazardous material?
No data in HMIRS

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