656768-1

6567681 Retaining Bearing Plate
Home » Catalog » Bearings (p. 2519) » Retaining Bearing Plates (p. 58) » Part Number 656768-1

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Datasheet. 656768-1 specification

Cross-sectional Shape Style
The style designation indicating the configuration that most nearly corresponds to the cross-sectional shape of the item.

flat w/aperture

Counterbore Diameter
The length of a straight line which passes through the center of a counterbored portion of a hole,and terminates at the circumference.

0.343in.

Counterbore Depth
The depth of the process used to enlarge part of a hole.

0.050in.

Outside Diameter
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.

4.175in. and 4.185in.

Mounting Hole Diameter
The length of a straight line which passes through the center of a mounting hole,and terminates at the circumference.

0.150in.

Aperture Diameter
The length of a straight line which passes through the center of an aperture,and terminates at the circumference.

3.125in.

Mounting Hole Arrangement Style
The style designation indicating the configuration that most nearly corresponds to the arrangement of the mounting hole(s).

single bolt hole circle

Bolt Circle Hole Quantity
The number of holes in a bolt circle.

6

Overall Thickness
An overall measurement of the smallest dimension of an item,in distinction from length or width.

0.100in.

Surface Finish
Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.

63.0 microinches one face

Mounting Hole Type
Indicates the type of mounting hole(s) provided on the item.

round, unthreaded, counterbored

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

aluminum alloy 6061

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

QQ-A-250/11 fed spec single material response

Surface Treatment
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.

chromate

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

MIL-C-5541, type 1, grade c, class 3 mil spec single treatment response or MIL-C-5541, type 2, grade c, class 3 mil spec single treatment response

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

round

Answers.

What is the style?

Round

What material is the retaining bearing plate made of ?

Aluminum alloy 6061

What is the outside diameter?

4.175 inches minimum and 4.185 inches maximum

What is the NSN for 656768-1?

3110-00-459-8138

How is this classified for shipping?

Schedule B number: 8482997090
Parts, for roller bearings or for combined ball/roller bearings

What's the federal classification of 656768-1?

FSC 3110 ⁓ Bearings, antifriction, unmounted

Note-this class includes bearings that generally have roller or balls confined by an inner and outer ring to relieve friction in/on/around rotating/moving mechanisms.

Excluding plain bearings (fsc 3120); jewel bearings (fsc 3120)

NSN 3110-00-459-8138 PLATE,RETAINING,BEARING

round chromate surface treated 4.175" outside diameter

NIIN
004598138
NIIN Date
12/29/69
Schedule B
8482997090 
Name Code
22293
FIIG
A093A0
DEMIL / ITAR
USML/ITAR controlled item (Code: B)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Major End Users Countries and entities

  • - Portugal 

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Similar by Design Other plates with similar characteristics

Nothing similar to this part number was found in our inventory

656768-1 / Plate,retaining,bearingWhat is the formal definition of this item?

A comparatively flat rigid item, with or without a centrally located aperture, designed to hold an annular bearing or a sleeve bearing in a fitted inclosure. it must have drilled and/or tapped holes for mounting purposes. excludes end bell, electrical rotating equipment.