Boss Reducer

AN893-21D

(NSN) National Stock Number

4730-00-186-9517

Federal Supply Classification

4730 Hose, Pipe, Tube, Lubrication and Railing Fittings

Item Name Code

23541

Schedule B Code

Summary

3a 2nd end thread class, 3b 1st end thread class, concentric reducer type, external seat for gasket seal (boss) 2nd end connection style, gasket seal (boss) 1st end connection style, threaded external boss 2nd end connection type

DAC	HCC	DMIL	RNCC
3	-	-	5

RNVC	SADC	MSDS	RNAAC
1	-	-	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 2nd end

Details

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

Thread Class

3b 1st end

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).

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

gasket seal (boss) 1st end

Details

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

Connection Type

threaded external boss 2nd end

Details

Indicates the type of connection/s/.

Connection Type

threaded internal boss 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.

Nominal Thread Size

0.875 inches 1st end

Details

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

Nominal Thread Size

1.625 inches 2nd end

Details

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

Nominal Overall Length

0.969 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 or aluminum alloy 2024 overall or aluminum alloy 7075 overall

Details

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

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.

Surface Treatment Document And Classification

mil-a-8625,type 2,class 1 mil 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

un 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.

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
AN893-21D	22995	3	-	5	9	-	AX
AN893-21D	13899	3	-	5	1	-	AX
AN893-21D	14798	E	-	5	9	-	AX
AN893-21D	14397	3	-	5	1	-	AX
AN893-21D	71563	3	-	5	9	-	AX
AN893-21D	00624	3	-	5	1	-	AX
AS5172D0610L	0U583	5	-	5	1	-	ZZ
AN893-21D	88044	3	-	2	2	-	AX

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
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HAZMAT Certified
Global Shipping

Manufacturer

ALLAN AIRCRAFT SUPPLY CO., LLC DBA ALLAN AIRCRAFT SUPPLY

CAGE: 06581

NORTH HOLLYWOOD , CA , 91605-6128

UNITED STATES

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FAQs

Frequently asked questions for NSN 4730-00-186-9517

What is the NIIN of the NSN 4730-00-186-9517?

The National Item Identification Number (NIIN) of the NSN 4730-00-186-9517 is 00-186-9517

When the NSN 4730-00-186-9517 was assigned to the Federal Catalog?

It was assigned 61 years ago, on Tue, Jan 1, 1963

Does the NSN 4730-00-186-9517 contain any precious metals?

Type/content is unknown

Does the NSN 4730-00-186-9517 contain any hazardous material?

No data in HMIRS

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