Hexagon Head Cap Screw

FFS85AMEND2TYPE2STYLE10PGRADE8

FFS85AMEND2TYPE2STYLE10PGRADE8
(NSN) National Stock Number
5305-00-022-5660
Federal Supply Classification
5305 Screws
Item Name Code
18257
Schedule B Code
7318152000
Summary

2a thread class, right-hand thread direction, 1.750 inches minimum thread length, 4.750 inches nominal fastener length, hexagon head style, 0.455 inches minimum and 0.483 inches maximum head height

DAC HCC DMIL RNCC
X - - 4
RNVC SADC MSDS RNAAC
1 - - XX
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
1.750 inches minimum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
4.750 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
0.455 inches minimum and 0.483 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
1.100 inches minimum and 1.125 inches maximum
Details None.
Hole Diameter
0.085 inches nominal
Details The length of a straight line which passes through the center of a hole,and terminates at the circumference.
Nominal Thread Diameter
0.750 inches
Details The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
Hole Quantity
1
Details The number of holes provided.
Hole Type
drilled
Details Indicates the type of hole(s) provided in the item.
Thread Quantity Per Inch
16
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.
Hole Configuration Style
hexagon flats
Details The style designation that most nearly corresponds to the appearance of the hole configuration.
Material
steel overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
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.
Nondefinitive Spec/Std Data
ii type and 10p style and 8 grade
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.
Departure From Cited Document
as modified by drilledhole
Details The technical differentiating characteristic/s/ of an item of supply which depart/s/ from the text of a specification or a standard in that it represents a selection of characteristics stated in the specification or standard as being optional,or a variation from one or more of the stated characteristics,or an additional characteristic not stated in the specification or standard.
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 U
RVC WCC TCC SHC
- 713 Z 9

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Manufacturer
FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
CAGE: 81348
NATL INSTITUTE STDS & TECH , MD , 20899
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-00-022-5660
What is the NIIN of the NSN 5305-00-022-5660?
The National Item Identification Number (NIIN) of the NSN 5305-00-022-5660 is 00-022-5660
When the NSN 5305-00-022-5660 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 5305-00-022-5660 contain any precious metals?
Type/content is unknown
Does the NSN 5305-00-022-5660 contain any hazardous material?
No data in HMIRS

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