Screw Stem Shutoff Cock

52-56

(NSN) National Stock Number

4820-00-142-1992

Federal Supply Classification

4820 Nonpowered Valves

Item Name Code

16990

Schedule B Code

8481909090

Summary

0.125 inches 2nd end nominal pipe size accommodated, 3b 1st end thread class, right-hand 1st end thread direction, right-hand 2nd end thread direction, plug flow control device, flare (tube) 1st end connection style

DAC	HCC	DMIL	RNCC
X	-	-	3

RNVC	SADC	MSDS	RNAAC
2	-	-	XX

Identification

A compact two-way type of valve mechanism having a one piece body and seat and a one piece stem and disk. It has no bonnet, and is not used for fine control of flow. It is used extensively in the automotive field.

INC	FIIG	Concept	Condition
16990	A530C0	-	1

Specifications

Nominal Pipe Size Accommodated

0.125 inches 2nd end

Details

A measurement of the pipe size the item will accommodate.

Thread Class

3b 1st end

Details

A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

Thread Direction

right-hand 1st end

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 Direction

right-hand 2nd end

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.

Flow Control Device

plug

Details

The part that controls the flow through the item.

Connection Style

flare (tube) 1st end

Details

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

Connection Style

plain (pipe) 2nd end

Details

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

Valve Operation Method

manual

Details

The means used to control the operation of the valve.

Connection Type

threaded external pipe 2nd end

Details

Indicates the type of connection/s/.

Connection Type

threaded internal tube 1st end

Details

Indicates the type of connection/s/.

Nominal Thread Size

0.500 inches 1st end

Details

A designation that is used for the purpose of general identification of the thread.

Nominal Thread Size

0.125 inches 2nd end

Details

A designation that is used for the purpose of general identification of the thread.

Seat Angle

45.0 degrees 1st end

Details

The angle of the end surface upon which the mated surface seats.

Nominal Outside Diameter Tube Accommodated

0.312 inches 1st end

Details

The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.

Material

copper alloy overall

Details

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

Style Designator

straight thru

Details

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

Thread Series Designator

nptf 2nd end

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.

Thread Series Designator

unf 1st end

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.

Furnished Items And Quantity

1 nut

Details

The name and number of those parts furnished with the item of supply that have not been specified elsewhere.

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
74780865	0AHU0	5	-	3	2	-	AX
152572C91	92679	5	-	5	2	-	AX
131-50775	44655	X	-	3	2	-	XX
958546	12204	X	-	5	9	-	XX
775	84972	5	-	5	9	-	SE
958546	93334	X	-	5	9	-	XX
5120541-00	83299	5	-	5	2	-	AX
547K715	83299	X	-	3	2	-	XX
775	01276	5	-	5	2	-	ZZ
A775	01276	5	-	3	2	-	ZZ
HF-2622PC18	28835	2	-	5	9	-	AX
775	79470	X	-	5	9	-	XX
A775	79470	X	-	5	9	-	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
30330	-	S	-

RVC	WCC	TCC	SHC
-	736	Z	9

Certified Supplier

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

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Manufacturer

DRESSER INDUSTRIES INC LEROI DIV

CAGE: 35301

SIDNEY , OH , 45365

UNITED STATES

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FAQs

Frequently asked questions for NSN 4820-00-142-1992

What is the NIIN of the NSN 4820-00-142-1992?

The National Item Identification Number (NIIN) of the NSN 4820-00-142-1992 is 00-142-1992

When the NSN 4820-00-142-1992 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Sun, Jan 1, 1961

Does the NSN 4820-00-142-1992 contain any precious metals?

Type/content is unknown

Does the NSN 4820-00-142-1992 contain any hazardous material?

No data in HMIRS

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