Tapered Roller Bearing

FF-B-187

(NSN) National Stock Number

3110-00-100-5523

Federal Supply Classification

3110 Unmounted Antifriction Bearings

Item Name Code

00021

Schedule B Code

8482200030

Summary

2.5000 inches nominal overall width, 7.5000 inches nominal bore diameter, 12.5000 inches nominal overall outside diameter, 0.1250 inches nominal backface corner radius, 0.6875 inches nominal standout width, 0.1710 inches nominal cone corner radius

DAC	HCC	DMIL	RNCC
E	-	-	4

RNVC	SADC	MSDS	RNAAC
1	-	-	ZZ

Identification

A cylindrical device in which the inner cone or outer cup turns upon a single or double row of tapered hardened rollers which roll easily in a race, thus minimizing friction and designed to carry a radial load and capable of sustaining axial thrust. Excludes:bearing,roller,thrust.

INC	FIIG	Concept	Condition
00021	A044A0	-	1

Specifications

Overall Width

2.5000 inches nominal

Details

An overall measurement taken at right angles to the length of an item,in distinction from thickness.

Bore Diameter

7.5000 inches nominal

Details

The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.

Overall Outside Diameter

12.5000 inches nominal

Details

The overall length of a straight line which passes through the center of an item,and terminates at the outside circumference.

Backface Corner Radius

0.1250 inches nominal

Details

None.

Standout Width

0.6875 inches nominal

Details

None.

Cone Corner Radius

0.1710 inches nominal

Details

None.

Cone Width

2.5000 inches nominal

Details

None.

Cup Width

1.8125 inches nominal

Details

A measurement taken at right angles to the length of the cup,in distinction from thickness.

Retainer Fabrication Method

pressed

Details

The means used in manufacturing the retainer.

Standard Tolerance Designation

afbma class 2

Details

The standard tolerance designation indicating the manufactured limitations of the item as established by the various specifications and standards.

Material

steel overall

Details

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

Style Designator

straight bore, normal angle

Details

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

Nondefinitive Spec/Std Data

751 type

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
93750-93125	97578	5	-	5	9	-	XX
N214PC70	97578	X	-	5	2	-	XX
N500ITEM5	97578	5	-	5	9	-	XX
N214PC70	16603	5	-	5	9	-	ZZ
N500ITEM5	16603	5	-	5	9	-	ZZ
FFB187TYPE751	81348	X	-	5	9	-	XX
93750-93125	20263	X	-	5	9	-	XX
MB2786PC21	20263	X	-	5	9	-	XX
MB2886PC21	20263	X	-	5	9	-	XX
93750-93125	60038	X	-	3	2	-	XX
12709-34	29899	5	-	5	9	-	XX
12883PC34	29899	5	-	5	9	-	XX
93750-93125	29899	5	-	5	9	-	XX
93750-93125	14541	5	-	5	9	-	XX
N214PC70	3X894	5	-	5	9	-	ZZ
N500ITEM5	3X894	5	-	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
58860	-	P	-

RVC	WCC	TCC	SHC
-	742	Z	9

Certified Supplier

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Manufacturer

FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

CAGE: 81348

NATL INSTITUTE STDS & TECH , MD , 20899

UNITED STATES

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FAQs

Frequently asked questions for NSN 3110-00-100-5523

What is the NIIN of the NSN 3110-00-100-5523?

The National Item Identification Number (NIIN) of the NSN 3110-00-100-5523 is 00-100-5523

When the NSN 3110-00-100-5523 was assigned to the Federal Catalog?

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

Does the NSN 3110-00-100-5523 contain any precious metals?

Type/content is unknown

Does the NSN 3110-00-100-5523 contain any hazardous material?

No data in HMIRS

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