4ZTD0751

View detailed technical data, stock status, and sourcing information for: 4ZTD0751

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4ZTD0751
Federal Supply Group
Bearings
Federal Supply Classification
3120 Unmounted Plain Bearings
National Stock Number
3120-00-353-2493
Item Name Code
13211
Assigment Date
01/01/1963 (63 years ago)

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes:straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

1.1280 inches minimum and 1.1370 inches maximum diameter, 0.0580 inches minimum and 0.0620 inches maximum overall thickness, 4.0257 inches minimum and 4.0317 inches maximum outside diameter, round center hole shape style, convex cross-sectional shape style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Cross-Sectional Shape Style
convex
Outside Diameter
4.0257 inches minimum and 4.0317 inches maximum
Center Hole Shape Style
round
Diameter
1.1280 inches minimum and 1.1370 inches maximum
Overall Thickness
0.0580 inches minimum and 0.0620 inches maximum
Outside Spherical Radius
4.0257 inches minimum and 4.0317 inches maximum
Inside Spherical Radius
3.9677 inches minimum and 3.9697 inches maximum
Corner Shape
square first inside corner
Corner Shape
square second inside corner
Hardness Rating
60.0 rockwell c minimum and 65.0 rockwell c maximum overall
Material
steel overall
Surface Condition
ground
Style Designator
round

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
3120-00-544-3238 No Name Available 02/15/1967
2520-00-632-2810 No Name Available 01/01/1963

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

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1020D5 Thrust Washer Bearing
109393 Thrust Washer Bearing
11A9652 Thrust Washer Bearing
1229D888 Thrust Washer Bearing
1238D5 Thrust Washer Bearing
1829Q95 Thrust Washer Bearing
2037010 Thrust Washer Bearing
36619M Thrust Washer Bearing
398G9 Thrust Washer Bearing
398GX9 Thrust Washer Bearing
3B6269 Thrust Washer Bearing
4A1829Q95 Thrust Washer Bearing
4ZTD0751 Thrust Washer Bearing
7B5212 Thrust Washer Bearing
BB26222 Thrust Washer Bearing

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 3120-00-353-2493?
The FSCG of the NSN 3120-00-353-2493 is 3120
Does the NSN 3120-00-353-2493 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105008
Does NSN 3120-00-353-2493 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 3120-00-353-2493 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-00-353-2493 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 3120-00-353-2493 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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