Hexagon Head Cap Screw

YMS1S4902-435685PC74

(NSN) National Stock Number

5305-00-017-9791

Federal Supply Classification

5305 Screws

Item Name Code

18257

Schedule B Code

7318152000

Summary

2a thread class, right-hand thread direction, 0.500 inches nominal thread length, 0.500 inches nominal fastener length, hexagon head style, 0.150 inches minimum and 0.163 inches maximum head height

DAC	HCC	DMIL	RNCC
X	-	-	5

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

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

0.500 inches nominal

Details

A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.

Fastener Length

0.500 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

0.150 inches minimum and 0.163 inches maximum

Details

A measurement from the bottom to the top of the head,in distinction from depth.

Width Between Flats

0.428 inches minimum and 0.437 inches maximum

Details

None.

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.

Thread Quantity Per Inch

Details

The number of threads on the item per linear inch measured on a line parallel to the thread axis.

Minimum Tensile Strength

120000 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

23.0 rockwell c minimum overall and 30.0 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 overall

Details

The chemical compound or mechanical mixture properties of which the item is fabricated.

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.

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
103202	61465	5	-	5	1	-	KZ
4100112	6N299	5	-	5	1	-	KZ
2138	49576	5	-	5	1	-	ZF
FFS85TYPE2STYLE10P	81348	X	-	4	1	-	XX
179791	24617	X	-	5	1	-	XX
3249163	24617	X	-	5	1	-	XX
179791	72582	X	-	5	1	-	XX
3249163	72582	X	-	5	1	-	XX
S244	3D6E9	5	-	5	1	-	ZZ
S244	78500	5	-	5	9	-	XX
13XX5857	14351	X	-	5	9	-	XX
F4688PC169	30760	5	-	5	9	-	9Z
F4689PC169	30760	5	-	5	9	-	9Z
F4688PC169	0AT62	5	-	5	1	-	9Z
F4689PC169	0AT62	5	-	5	1	-	9Z
F4688PC169	88663	5	-	5	9	-	9Z
F4689PC169	88663	5	-	5	9	-	9Z
BB5138	56442	5	-	5	9	-	KZ
AM136S49-159PC56	80064	X	-	5	1	-	XX
AM136S49-170PC56	80064	X	-	5	1	-	XX
YMS1S4902-435687PC74	80064	X	-	5	1	-	XX
YMS1S4902-435695PC74	80064	X	-	5	1	-	XX
MS35295-3	96906	X	-	2	2	-	XX

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

Certified Supplier

Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.

Fast Quote Times
Qualified sales team
100% Product Inspections
Counterfeit Parts Prevention

Manufacturer

NAVAL SHIP SYSTEMS COMMAND

CAGE: 80064

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FAQs

Frequently asked questions for NSN 5305-00-017-9791

What is the NIIN of the NSN 5305-00-017-9791?

The National Item Identification Number (NIIN) of the NSN 5305-00-017-9791 is 00-017-9791

When the NSN 5305-00-017-9791 was assigned to the Federal Catalog?

It was assigned 61 years ago, on Tue, Jan 1, 1963

Does the NSN 5305-00-017-9791 contain any precious metals?

Type/content is unknown

Does the NSN 5305-00-017-9791 contain any hazardous material?

No data in HMIRS

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