Setscrew

ANSI B18.6.2TABL4 1/4UNC2AX1/2CU

ANSI B18.6.2TABL4 1/4UNC2AX1/2CU
(NSN) National Stock Number
5305-00-010-2870
Federal Supply Classification
5305 Screws
Item Name Code
06672
Schedule B Code
7318152000
Summary

2a thread class, right-hand thread direction, 0.469 inches minimum and 0.500 inches maximum thread length, 0.469 inches minimum and 0.531 inches maximum fastener length, square head style, 0.178 inches minimum and 0.196 inches maximum head height

DAC HCC DMIL RNCC
4 - - 3
RNVC SADC MSDS RNAAC
1 - - 9Z
Identification

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

INC FIIG Concept Condition
06672 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
0.469 inches minimum and 0.500 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
0.469 inches minimum and 0.531 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
square
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Height
0.178 inches minimum and 0.196 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
0.241 inches minimum and 0.250 inches maximum
Details None.
Point Style
cup
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the point.
Internal Drive Style
w/o internal drive
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
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.
Features Provided
casehardened
Details Those features,not otherwise specified,which may be required for proper functioning of the item.
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.
Hardness Rating
30.0 rockwell c minimum overall and 37.0 rockwell c maximum overall
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Material
steel comp 1010 overall or steel comp 1020 overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
66 fed std all material responses overall or sae j403 uns g10100 thru g10200 assn std all material responses 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.
Supplementary Features
natural fin. unplated/uncoated
Details Characteristics or qualities of an item,not covered in any other requirement,which are considered essential information for one or more functions excluding nsn assignment.
Thread Series Designator
unc
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
81348-ff-s-210 government specification and 80204-ansi b18.6.2 professional/industrial association standard and 24617-102870 manufacturers standard and 11757-500568 manufacturers standard
Details The document designator of the specification or standard which established the item of supply.
Nondefinitive Spec/Std Data
1 type and 4 style and 1/4.in size and 1/2in. length and 4 table
Details The number,letter,or symbol that indicates the type,style,grade,class,and the like,of an item in a nonidentifying specification or standard.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
500568-4 U1809 2 - 5 2 - ZK
B18.6.2 1/4-20UNC 2A X 1/2 LGCUP 80204 4 - 3 1 - 9Z
FF-S-210 81348 4 - 4 1 - 9Z
102870 24617 4 - 5 9 - 9Z
102870 7X677 4 - 5 2 - ZZ
102870 19207 4 - 5 9 - 9Z
500568-4 11757 4 - 3 2 - 9Z
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 5305-00-010-2870
What is the NIIN of the NSN 5305-00-010-2870?
The National Item Identification Number (NIIN) of the NSN 5305-00-010-2870 is 00-010-2870
When the NSN 5305-00-010-2870 was assigned to the Federal Catalog?
It was assigned 37 years ago, on Mon, Jan 12, 1987
Does the NSN 5305-00-010-2870 contain any precious metals?
Does not contain precious metal
Does the NSN 5305-00-010-2870 contain any hazardous material?
No data in HMIRS

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