Hexagon Head Cap Screw

B1821BH038F100D

(NSN) National Stock Number

5305-00-022-4339

Federal Supply Classification

5305 Screws

Item Name Code

18257

Schedule B Code

7318152000

Summary

2a thread class, right-hand thread direction, 0.969 inches minimum and 1.000 inches maximum thread length, 0.969 inches minimum and 1.000 inches maximum fastener length, hexagon head style, 0.226 inches minimum and 0.243 inches maximum head height

DAC	HCC	DMIL	RNCC
E	-	-	3

RNVC	SADC	MSDS	RNAAC
2	-	-	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

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

0.969 inches minimum and 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

0.969 inches minimum and 1.000 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

hexagon

Details

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

Head Height

0.226 inches minimum and 0.243 inches maximum

Details

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

Width Between Flats

0.551 inches minimum and 0.562 inches maximum

Details

None.

Hole Diameter

0.062 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

0.375 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

Details

The number of holes provided.

Hole Type

drilled

Details

Indicates the type of hole(s) provided in the item.

Thread Quantity Per Inch

Details

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

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.

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 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.

Nondefinitive Spec/Std Data

2 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 Designator

as mod by hole in head and thd series

Details

The variation when the item is in conformity with a type designator covered by a specification or standard,except in regard to one or more technical differentiating characteristics.

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
MS18153-60	A9271	5	-	5	2	-	ZR
224339	21450	4	-	5	2	-	KZ
FFS85	81348	E	-	4	1	-	XX
224339	24617	X	-	5	9	-	XX
20998	02978	X	-	5	2	-	XX
224339	7X677	5	-	C	1	-	ZZ
5189125	19207	5	-	5	2	-	KZ
A189125	00000	X	-	5	9	-	XX
MS18153-60	96906	4	-	5	9	-	KZ

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	-

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

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 5305-00-022-4339

What is the NIIN of the NSN 5305-00-022-4339?

The National Item Identification Number (NIIN) of the NSN 5305-00-022-4339 is 00-022-4339

When the NSN 5305-00-022-4339 was assigned to the Federal Catalog?

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

Does the NSN 5305-00-022-4339 contain any precious metals?

Type/content is unknown

Does the NSN 5305-00-022-4339 contain any hazardous material?

No data in HMIRS

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