Socket Head Cap Screw

MS21262-63

(NSN) National Stock Number

5305-00-004-5103

Federal Supply Classification

5305 Screws

Item Name Code

16282

Schedule B Code

7318152000

Summary

3a thread class, right-hand thread direction, 0.875 inches minimum thread length, 1.235 inches minimum and 1.281 inches maximum fastener length, flat chamfer head style, 0.303 inches minimum and 0.312 inches maximum head diameter

DAC	HCC	DMIL	RNCC
E	-	-	3

RNVC	SADC	MSDS	RNAAC
2	-	-	ZZ

Identification

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

INC	FIIG	Concept	Condition
16282	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

0.875 inches minimum

Details

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

Fastener Length

1.235 inches minimum and 1.281 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

flat chamfer

Details

The style designation indicating the configuration that most nearly corresponds to the appearance of the head.

Head Diameter

0.303 inches minimum and 0.312 inches maximum

Details

The length of a straight line which passes through the center of a circular head,and terminates at the circumference.

Head Height

0.185 inches minimum and 0.190 inches maximum

Details

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

Locking Feature

strip threads or pellet threads or patch threads

Details

An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.

Internal Drive Style

hexagon

Details

The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.

Nominal Thread Diameter

0.190 inches

Details

The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.

Width Across Flats

0.156 inches minimum and 0.159 inches maximum

Details

The shortest straight line between flats,perpendicular to the height.

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

160000 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

36.0 rockwell c minimum overall and 45.0 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.

Surface Treatment

cadmium 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

qq-p-416 type 2 class 3 fed spec all treatment responses 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.

Nondefinitive Spec/Std Data

6 type

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
LK21262-63	26304	4	-	5	9	-	KZ
FFS86	81348	4	-	4	1	-	SE
MS21262-63	96906	4	-	5	9	-	SE

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
50600	-	Q	-

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.

ISO9001 / AS9100 Quality Standards
HAZMAT Certified
On Time Delivery
Qualified sales team
Counterfeit Parts Prevention
100% Product Inspections

Manufacturer

NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE

CAGE: 80205

ARLINGTON , VA , 22209

UNITED STATES

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FAQs

Frequently asked questions for NSN 5305-00-004-5103

What is the NIIN of the NSN 5305-00-004-5103?

The National Item Identification Number (NIIN) of the NSN 5305-00-004-5103 is 00-004-5103

When the NSN 5305-00-004-5103 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Wed, Jun 7, 1972

Does the NSN 5305-00-004-5103 contain any precious metals?

Type/content is unknown

Does the NSN 5305-00-004-5103 contain any hazardous material?

No data in HMIRS

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