Rod End Ball Bearing

MS21151-11

(NSN) National Stock Number

3110-00-079-9960

Federal Supply Classification

3110 Unmounted Antifriction Bearings

Item Name Code

00049

Schedule B Code

8482800080

Summary

3a thread class, right-hand thread direction, 0.4375 inches nominal shank diameter, externally threaded shank style, 3.0630 inches nominal overall length, 0.3122 inches minimum and 0.3125 inches maximum bore diameter

DAC	HCC	DMIL	RNCC
5	-	-	3

RNVC	SADC	MSDS	RNAAC
2	-	-	ZZ

Identification

A special single or multiple-row ball bearing, rigid or self-aligning, and constructed with either a solid or hollow shank, internally or externally threaded.

INC	FIIG	Concept	Condition
00049	A044A0	-	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.

Shank Diameter

0.4375 inches nominal

Details

The length of a straight line which passes through the center of the body of the shank and terminates at the circumference.

Shank Style

externally threaded

Details

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

Overall Length

3.0630 inches nominal

Details

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

Bore Diameter

0.3122 inches minimum and 0.3125 inches maximum

Details

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

Overall Outside Diameter

1.2400 inches minimum and 1.2510 inches maximum

Details

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

Shank Thread Length

1.5630 inches nominal

Details

None.

Outer Ring Width

0.6500 inches nominal

Details

None.

Inner Ring Width

0.8700 inches nominal

Details

None.

Length From Bore Center To Shank End

2.4380 inches nominal

Details

None.

Seal Quantity

Details

The number of seals included on the item.

Bearing Seal Type

contact

Details

Indicates the type of seal provided with the bearing.

Alignment Type

self-aligning

Details

Indicates the type of alignment utilized whereby the item will adjust axially for misalignment.

Self-Alignment Location

internal

Details

Indicates the location of the self-alignment feature.

Thread Quantity Per Inch

Details

The number of threads on the item per linear inch measured on a line parallel to the thread axis.

Nominal Thread Size

0.438 inches

Details

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

Self-Alignment Angle

10.00 degrees nominal

Details

None.

Special Features

0.0004 in. max radial clearance

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.

Lubrication Material

grease

Details

The chemical compound or mechanical mixture properties with which the item is lubricated.

Lubrication Material Document And Classification

mil-prf-81322 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

steel ball

Details