Boss Reducer

AN919-18D

(NSN) National Stock Number

4730-00-187-3591

Federal Supply Classification

4730 Hose, Pipe, Tube, Lubrication and Railing Fittings

Item Name Code

23541

Schedule B Code

7609000000

Summary

3a all ends thread class, concentric reducer type, aircraft application end item identification, flared w/ gasket seal (boss) all ends connection style, threaded external boss all ends connection type, 12 1st end thread quantity per inch

DAC	HCC	DMIL	RNCC
E	-	-	5

RNVC	SADC	MSDS	RNAAC
9	-	-	AX

Identification

A straight fitting having a boss connection of a different size at each end. Both connections have external or internal machine threads (straight threads other than pipe or hose series) and are designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. Excludes:bushing (as modified).

INC	FIIG	Concept	Condition
23541	A080B0	-	1

Specifications

Thread Class

3a all ends

Details

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

Reducer Type

concentric

Details

Refers to the location of the ends whether on the same centerline (concentric) or on different centerlines (eccentric).

End Item Identification

aircraft application

Details

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

Connection Style

flared w/ gasket seal (boss) all ends

Details

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

Connection Type

threaded external boss all ends

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.

Nominal Thread Size

0.562 inches 2nd end

Details

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

Nominal Thread Size

1.062 inches 1st end

Details

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

Nominal Overall Length

1.797 inches

Details

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

Material

aluminum alloy 2014 overall

Details

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

Material Document And Classification

qq-a-225/4,t6 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.

Surface Treatment

anodize 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.

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.

Thread Series Designator

unf 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.

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
AN919-18D	R1120	6	-	5	2	-	ZG
Z00.N7730063287	F0086	4	-	5	9	-	ZF
AN919-18D	22995	E	-	5	9	-	AX
AN919-18D	13899	E	-	5	9	-	AX
AN919-18D	14798	E	-	5	9	-	AX
AN919-18D	14397	E	-	5	9	-	AX
273-0089-019	94756	6	-	5	1	-	AX
AN919-18D	06581	E	-	5	9	-	AX
991918	65023	6	-	C	1	-	ZZ
AN919-18D	71563	E	-	5	9	-	AX
AN919-18D	00624	E	-	5	9	-	AX
AS4841	0U583	E	-	5	9	-	ZZ
AS5174	0U583	E	-	5	9	-	ZZ
AS5174D1206	0U583	E	-	3	2	-	ZZ
SAE-AS4841	0U583	E	-	3	1	-	ZZ
AS4841	81343	E	-	5	9	-	ZZ
AS5174	81343	E	-	5	9	-	ZZ
AS5174D1206	81343	E	-	5	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
00000	-	W	-

RVC	WCC	TCC	SHC
-	576	Z	9

Certified Supplier

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

Genuine Manufacturers Parts
100% Product Inspection
7 Year Sales Record Retention
Fast On-Time Delivery
HAZMAT Certified
Global Shipping

Manufacturer

AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE

CAGE: 88044

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FAQs

Frequently asked questions for NSN 4730-00-187-3591

What is the NIIN of the NSN 4730-00-187-3591?

The National Item Identification Number (NIIN) of the NSN 4730-00-187-3591 is 00-187-3591

When the NSN 4730-00-187-3591 was assigned to the Federal Catalog?

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

Does the NSN 4730-00-187-3591 contain any precious metals?

Type/content is unknown

Does the NSN 4730-00-187-3591 contain any hazardous material?

No data in HMIRS

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