Tube to Boss Tee

AS21910J8

(NSN) National Stock Number

4730-00-978-8756

Federal Supply Classification

4730 Hose, Pipe, Tube, Lubrication and Railing Fittings

Item Name Code

22683

Schedule B Code

7307994000

Summary

3a 2nd end thread class, 3a 1st end thread class, 3a 1st end bulkhead thread class, 3b 3rd end thread class, 275.0 deg celsius single response maximum operating temp, external seat for gasket seal (boss) 2nd end connection style

DAC	HCC	DMIL	RNCC
E	-	-	5

RNVC	SADC	MSDS	RNAAC
9	-	-	ZZ

Identification

A fitting having three connections with the branch connection fixed at 90 degrees (1.5705 radians) to the run. The tube connection(s) has machine threads (straight threads other than pipe or hose series) designed to accommodate a tube, or is unthreaded and designed to accommodate a tube. The boss connection(s) has external or internal machine threads (straight threads other than pipe or hose series), and is designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. It may have side inlet(s). It is used as a junction at the intersection of a tube or fitting and a boss or boss fitting on items such as a tank, housing, valve fitting, or the like. See also tee, tube; and tee, pipe to tube. Excludes:connector, multiple, fluid pressure line.

INC	FIIG	Concept	Condition
22683	A080B0	-	1

Specifications

Thread Class

3a 2nd end

Details

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

Thread Class

3a 1st end

Details

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

Thread Class

3a 1st end bulkhead

Details

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

Thread Class

3b 3rd end

Details

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

Maximum Operating Temp

275.0 deg celsius single response

Details

The maximum temperature at which the item is rated to operate for an extended period of time.

Connection Style

external seat for gasket seal (boss) 2nd end

Details

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

Connection Style

flareless (tube) 1st end

Details

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

Connection Style

gasket seal (boss) 3rd end

Details

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

Leg Length

1.344 inches nominal 2nd end

Details

A measurement of the longest dimension of the leg,in distinction from width.

Leg Length

1.000 inches nominal 3rd end

Details

A measurement of the longest dimension of the leg,in distinction from width.

Leg Length

2.031 inches minimum 1st end and 2.203 inches maximum 1st end

Details

A measurement of the longest dimension of the leg,in distinction from width.

Connection Type

threaded external boss 2nd end

Details

Indicates the type of connection/s/.

Connection Type

threaded external tube 1st end

Details

Indicates the type of connection/s/.

Connection Type

threaded internal boss 3rd end

Details

Indicates the type of connection/s/.

Maximum Operating Pressure

3000.0 pounds per square inch single response

Details

The maximum pressure at which the item is rated for operation.

Nominal Thread Size

0.750 inches 1st end bulkhead

Details

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

Nominal Thread Size

0.750 inches all ends

Details

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

Seat Angle

12.0 degrees 1st end

Details

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

Nominal Outside Diameter Tube Accommodated

0.500 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

steel comp 304 overall or steel comp 316 overall

Details

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

Material Document And Classification

66,aisi 304/sae 30304 fed std 1st material response overall or 6,a8s8 316/sae 30316 fed std 2nd material response overall

Details

The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.

Media For Which Designed

hydraulic fluid single response

Details

The type of media for which the item is designed.

Surface Treatment

passivate 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

mil-f-14072,e300,ty2 mil spec single treatment response outside

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.

Surface Treatment Document And Classification

mil-s-5002 mil spec single treatment response inside

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

unjf all ends

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

unjf 1st end bulkhead

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.

Specification/Standard Data

96906-ms21910 government standard

Details

The document designator of the specification or standard which established the item of supply.

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
MS21910J8	01673	E	-	5	9	-	AX
MS21910J8	14798	E	-	5	9	-	AX
MS21910J8	14397	E	-	5	9	-	AX
MS21910J8	03647	E	-	5	9	-	AX
MS21910J8	00624	E	-	5	9	-	AX
AS18280	0U583	E	-	5	9	-	ZZ
MS21910J8	0U583	5	-	3	2	-	ZZ
SAE-AS18280	0U583	E	-	3	1	-	ZZ
AS18280	81343	E	-	5	9	-	ZZ
AS21910J8	81343	E	-	5	9	-	ZZ
MS21910-8J	96906	3	-	C	1	-	ZZ
MS21910J8	96906	E	-	5	9	-	AX

Material and Special Handling

Hazardous material, precious metals, criticality, and electrostatic discharge indicators.

HMIC	PMIC	ESD/EMI	Criticality
N	A	-	-

Freight

Universal / National Freight and Handling Information

UFC	HMC	LTL	LCL
30000	-	W	-

RVC	WCC	TCC	SHC
-	576	Z	9

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Manufacturer

SAE INTERNATIONAL

CAGE: 0U583

WARRENDALE , PA , 15086-7511

UNITED STATES

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FAQs

Frequently asked questions for NSN 4730-00-978-8756

What is the NIIN of the NSN 4730-00-978-8756?

The National Item Identification Number (NIIN) of the NSN 4730-00-978-8756 is 00-978-8756

When the NSN 4730-00-978-8756 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Mon, Jan 1, 1962

Does the NSN 4730-00-978-8756 contain any precious metals?

Does not contain precious metal

Does the NSN 4730-00-978-8756 contain any hazardous material?

No data in HMIRS

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