Tube Coupling Inverted Nut

2-050110

(NSN) National Stock Number

4730-00-278-5490

Federal Supply Classification

4730 Hose, Pipe, Tube, Lubrication and Railing Fittings

Item Name Code

03857

Schedule B Code

Summary

2a thread class, right-hand thread direction, not casehardened casehardening indicator, 0.500 inches nominal overall length, 5/16-24 thread size, 0.125 inches nominal tube outside diameter for which designed

DAC	HCC	DMIL	RNCC
4	-	-	5

RNVC	SADC	MSDS	RNAAC
9	-	-	AX

Identification

An externally threaded fastening device which has an internal or external seat, designed to mate with the seat of an internally threaded tube fitting for the purpose of securing the tube to the fitting to form a leakproof connection.

INC	FIIG	Concept	Condition
03857	T385-B	-	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.

Casehardening Indicator

not casehardened

Details

Indicates whether or not a ferrous alloy object has been subjected to a process whereby the outer portion is made substantially harder than the inner portion or core.

Overall Length

0.500 inches nominal

Details

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

Thread Size

5/16-24

Details

Designates the thread diameter and number of threads per specific measurement scale.

Tube Outside Diameter For Which Designed

0.125 inches nominal

Details

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

End Item Identification

support equipment--c-5 aircraft, t-38 aircraft, b-52 aircraft, t-37 aircraft, ov-10a aircraft; aircraft, f-16; shop equipment, contact maint, trk-mtd, set 3, tam b19457; tractor, flightline towing

Details

The national stock number or the identification information of the end equipment for which the item is a part.

Seat Radius

0.219 inches nominal

Details

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

Screw Thread Series Designator

unf

Details

A designation distinguishing one group of screw thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

Width Across Flats

0.313 inches nominal

Details

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

Smallest Inside Diameter

0.128 inches nominal

Details

The smallest length of a straight line which passes through the center of the two surfaces of a circular item,and terminates at the inside circumference.

Criticality Code Justification

feat

Details

The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.

Special Features

weapon system essential

Details

Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.

Material

copper alloy

Details

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

Style Designator

inverted nut, tube, compression

Details

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

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
181D1-8	30327	5	-	5	9	-	AX
2-050110	30327	4	-	5	9	-	AX
106-10102	04255	5	-	5	9	-	AX
2-050110	04255	4	-	5	9	-	AX
121634	24617	5	-	5	9	-	AX
2-050110	24617	3	-	5	9	-	AX
2-050110	72582	4	-	5	9	-	AX
81TS-2	93061	5	-	5	9	-	AX
X1086T38	30760	5	-	5	9	-	AX
6100X2	01276	5	-	3	2	-	ZZ
106-10002	79470	5	-	5	9	-	AX
2-050110	79470	4	-	5	9	-	AX
6100X2	79470	6	-	5	9	-	AX
2-050110	56442	4	-	5	9	-	AX
2-050110	81343	4	-	5	9	-	AX
2-050110	13174	6	-	3	9	-	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
48950	-	W	-

RVC	WCC	TCC	SHC
-	573	Z	9

Certified Supplier

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Manufacturer

INGERSOLL RAND CO

CAGE: 30760

WESTWOOD , NJ , 07675-0636

UNITED STATES

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FAQs

Frequently asked questions for NSN 4730-00-278-5490

What is the NIIN of the NSN 4730-00-278-5490?

The National Item Identification Number (NIIN) of the NSN 4730-00-278-5490 is 00-278-5490

When the NSN 4730-00-278-5490 was assigned to the Federal Catalog?

It was assigned 62 years ago, on Tue, Jan 1, 1963

Does the NSN 4730-00-278-5490 contain any precious metals?

Type/content is unknown

Does the NSN 4730-00-278-5490 contain any hazardous material?

No data in HMIRS

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