Pipe to Tube Straight Adapter

MIL-DTL-18866

(NSN) National Stock Number

4730-00-139-3841

Federal Supply Classification

4730 Hose, Pipe, Tube, Lubrication and Railing Fittings

Item Name Code

03776

Schedule B Code

7307992000

Summary

2a 1st end thread class, -54.0 deg celsius 1st response maximum operating temp, 121.0 deg celsius 2nd response maximum operating temp, flareless (tube) 1st end connection style, plain (pipe) 2nd end connection style, threaded external pipe 2nd end connection type

DAC	HCC	DMIL	RNCC
E	-	-	4

RNVC	SADC	MSDS	RNAAC
1	-	-	ZZ

Identification

An adapter having standard pipe threads on one end or an unthreaded end designed to accommodate a pipe. The other end 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. It is designed to join a pipe or pipe fitting to a tube or tube fitting in a straight line.

INC	FIIG	Concept	Condition
03776	A080B0	1	1

Specifications

Thread Class

2a 1st end

Details

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

Maximum Operating Temp

-54.0 deg celsius 1st response

Details

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

Maximum Operating Temp

121.0 deg celsius 2nd response

Details

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

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

plain (pipe) 2nd end

Details

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

Connection Type

threaded external pipe 2nd end

Details

Indicates the type of connection/s/.

Connection Type

threaded external tube 1st end

Details

Indicates the type of connection/s/.

Thread Quantity Per Inch

12 1st end

Details

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

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

1.250 inches 2nd end

Details

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

Nominal Thread Size

1.625 inches 1st end

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

1.250 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.

Nominal Overall Length

2.180 inches

Details

The nominal dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

Material

steel overall

Details

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

Material Document And Classification

qq-s-624 fed spec single material response overall or qq-s-631 fed spec single material response overall or qq-s-637 fed spec single 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 Document And Classification

j514 assn std single treatment response overall and qq-p-416, ty 2, cl 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

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

un 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 ferrule sleeve and 1 short coupling nut

Details

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

Specification/Standard Data

96906-ms51819 government standard and 81343-j514 professional/industrial association standard

Details

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

Nondefinitive Spec/Std Data

19a figure

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
0-20 080102CA	81232	E	-	5	9	-	AX
0914148	92392	6	-	5	9	-	AX
0914148-2	92392	6	-	5	9	-	AX
914148	92392	6	-	5	9	-	AX
MS51819-20	30327	E	-	5	9	-	AX
MS51819-20	00624	E	-	5	1	-	AX
MS51819-20	45681	E	-	5	9	-	AX
20FBU-S	30780	E	-	5	1	-	AX
8205X20	79470	6	-	5	9	-	AX
A8205X20	79470	6	-	5	9	-	AX
MS51819-20	79470	E	-	5	9	-	AX
J514	81343	E	-	5	9	-	AX
20FBU-S	98441	E	-	5	9	-	AX
MS51819-20	13174	E	-	5	9	-	ZZ
MIL-F-18866	81349	E	-	5	9	-	ZZ
MS51819-20	96906	E	-	5	9	-	AX
MS51819-20B	96906	E	-	2	2	-	ZZ

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
30000	-	W	-

RVC	WCC	TCC	SHC
-	576	Z	9

Certified Supplier

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Manufacturer

MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

CAGE: 81349

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FAQs

Frequently asked questions for NSN 4730-00-139-3841

What is the NIIN of the NSN 4730-00-139-3841?

The National Item Identification Number (NIIN) of the NSN 4730-00-139-3841 is 00-139-3841

When the NSN 4730-00-139-3841 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Wed, Sep 1, 1971

Does the NSN 4730-00-139-3841 contain any precious metals?

Type/content is unknown

Does the NSN 4730-00-139-3841 contain any hazardous material?

No data in HMIRS

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