Part Information
Counterbore second end, 2.750 in. Dia, 3.200 in. Dp

NSN

National Stock Number:

3020-00-220-9080 3020002209080

TXT

Description:

Spur Gear

INC

Item Name Code:

05466

MRC:

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

Body Style:

Plain, with lightening holes

MRC:

The number of splines on or in the item.ABSA

Spline Quantity:

25 both ends

MRC:

A measurement indicating the diameter-pitch per specific measurement scale of the item.AGJS

Pitch Diameter:

8.9000 inches

MRC:

The number of teeth included on the item.AJLA

Teeth Quantity:

89

MRC:

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

Bore Style:

Involute spline both ends

MRC:

A measurement of the spline pitch diameter.BDTX

Spline Pitch Diameter:

2.5000 inches both ends

MRC:

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

Outside Diameter:

9.097 inches

MRC:

An indication as to whether the teeth are a standard depth or modified to a shorter depth.CWNH

Tooth Form:

Standard

MRC:

The measurement of the pressure angle on the item.CWPP

Pressure Angle:

20.0000 degrees

MRC:

The nominal distance between the body face and the protruding hub end.CWQL

Distance Between Body Face And Protruding Hub End:

1.170 inches second end

MRC:

The nominal distance between the body face and the protruding hub end.CWQL

Distance Between Body Face And Protruding Hub End:

3.330 inches first end

MRC:

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

Face Width:

1.500 inches

MRC:

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

Bore Diameter:

2.640 inches both ends

MRC:

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

Hub Style Designator:

1 step second end

MRC:

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

Hub Style Designator:

2 steps first end

MRC:

A nominal measurement of the longest dimension of the end of the item,in distinction from width.CWWH

End Length:

0.880 inches second end

MRC:

A nominal measurement of the longest dimension of the end of the item,in distinction from width.CWWH

End Length:

2.160 inches first end

MRC:

The nominal length of a straight line which passes through the center of the end of the item,and terminates at the circumference.CWWN

End Diameter:

3.150 inches second end

MRC:

The nominal length of a straight line which passes through the center of the end of the item,and terminates at the circumference.CWWN

End Diameter:

3.125 inches first end

MRC:

A nominal measurement of the longest dimension of the first step,in distinction from width.CWWS

First Step Length:

0.290 inches second end

MRC:

A nominal measurement of the longest dimension of the first step,in distinction from width.CWWS

First Step Length:

0.880 inches first end

MRC:

The nominal length of a straight line which passes through the center of the first step,and terminates at the circumference.CWXB

First Step Diameter:

3.380 inches second end

MRC:

The nominal length of a straight line which passes through the center of the first step,and terminates at the circumference.CWXB

First Step Diameter:

3.150 inches first end

MRC:

A nominal measurement of the longest dimension of the second step,in distinction from width.CWXG

Second Step Length:

0.290 inches first end

MRC:

The nominal length of a straight line which passes through the center of the second step,and terminates at the circumference.CWXL

Second Step Diameter:

3.380 inches first end

MRC:

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

Material:

Steel

MRC:

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

Style Designator:

Protruding hubs

Code	Definition
FN	Factory New. Parts manufactured by then OEM and includes manufacturer certification.
NE	New. Parts manufactured by the OEM. May include manufacturer certification or company certification.
NS	New Surplus. New material item purchased from excess inventory.
OH	Overhauled. Product has been rebuilt and tested in accordance with the manufacturer's specifications by a repair shop (MRO).
SV	Serviceable product.
AR	As Removed. Product removed from aircraft or platform with no guarentee on the functionality of the part.
RP	Repairable. Product can be repaired by a MRO and be given a FAA 8130 or EASA Form 1 certification.

Part Number 657D275-001

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