BEARING,BALL,AIRFRAME

B540DDMILG3278

(NSN) National Stock Number

3110-00-018-7451

Federal Supply Classification

3110 Unmounted Antifriction Bearings

Item Name Code

00041

Schedule B Code

8482105068

Summary

0.8750 inches nominal bore diameter, 1.3125 inches nominal overall outside diameter, 0.2500 inches nominal outer ring width, 0.2810 inches nominal inner ring width, 2 shield quantity, radial load direction

DAC	HCC	DMIL	RNCC
4	-	-	5

RNVC	SADC	MSDS	RNAAC
9	-	-	KZ

Identification

A cylindrical item in which the inner or outer ring turns upon row(s) of hardened ball, bearing which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes:bearing,ball,annular.

INC	FIIG	Concept	Condition
00041	A044A0	-	1

Specifications

Bore Diameter

0.8750 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

1.3125 inches nominal

Details

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

Outer Ring Width

0.2500 inches nominal

Details

None.

Inner Ring Width

0.2810 inches nominal

Details

None.

Shield Quantity

Details

The number of shields included on the item.

Load Direction

radial

Details

The direction of load with respect to the shaft axis.

Standard Tolerance Designation

afbma std tolerance for airframe ball bearings

Details

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

Lubrication Material Document And Classification

mil-g-23827 mil spec single material response

Details

The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the lubrication material.

Material

plastic polytetrafluoroethylene seal

Details

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

Material

steel ball

Details

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

Material

steel inner ring

Details

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

Material

steel outer ring

Details

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

Surface Treatment

cadmium all external/exposed metal surfaces

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.

Style Designator

single row inner ring extended both sides

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
B540DD	A0170	5	-	5	2	-	ZR
B540DD	06144	5	-	5	9	-	ZZ
B540DDFS160	06144	5	-	5	9	-	ZZ
B540DDFS160	3NPS1	5	-	3	2	-	ZZ
1565660-4	10001	5	-	5	9	-	KZ
180613-7	71791	5	-	5	2	-	KZ
B540DD	21335	5	-	5	9	-	9Z
B540DDFS160	21335	3	-	5	9	-	KZ
B540ZZ	38443	4	-	5	1	-	KZ
C094600-001	10618	5	-	5	9	-	KZ
6157P54-12	98889	1	-	1	2	-	ZZ
5B540DD	12133	4	-	5	9	-	KZ

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

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

ISO9001 / AS9100 Quality Standards
HAZMAT Certified
On Time Delivery
Qualified Sales Team
Counterfeit Parts Prevention
100% Product Inspections

Manufacturer

TIMKEN CO DIV THE TIMKEN COMPANY

CAGE: 21335

LEBANON , NH , 03766-2614

UNITED STATES

FAQs

Frequently asked questions for NSN 3110-00-018-7451

When the NSN 3110-00-018-7451 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Tue, Apr 25, 1967

Does the NSN 3110-00-018-7451 contain any precious metals?

Type/content is unknown

What is the NIIN of the NSN 3110-00-018-7451?

The National Item Identification Number (NIIN) of the NSN 3110-00-018-7451 is 00-018-7451

Does the NSN 3110-00-018-7451 contain any hazardous material?

No data in HMIRS

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