3120-00-840-2729

Find complete technical information, availability, and procurement data for: 3120-00-840-2729
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-840-2729

Item Name Code

13204

Assigment Date

01/01/1962 (64 years ago)

A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.

1.3070 inches minimum and 1.3120 inches maximum overall length, square inside right corner corner shape, 1.4995 inches minimum and 1.5000 inches maximum body inside diameter, square inside left corner corner shape, 2.1540 inches minimum and 2.1560 inches maximum spherical body diameter

Product Characteristics

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

Overall Length: 1.3070 inches minimum and 1.3120 inches maximum
Body Inside Diameter: 1.4995 inches minimum and 1.5000 inches maximum
Spherical Body Diameter: 2.1540 inches minimum and 2.1560 inches maximum
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Hardness Rating: 60.0 rockwell c minimum and 63.0 rockwell c maximum overall
Surface Finish: 32.0 microinches inside diameter surface of body
Surface Finish: 63.0 microinches left end surface
Surface Finish: 63.0 microinches right end surface
Surface Finish: 8.0 microinches spherical surface
Material: steel comp e52100 overall
Material Document And Classification: mil-s-7420 mil spec single material response overall
Surface Treatment: chromium left end surface
Surface Treatment: chromium right end surface
Surface Treatment: chromium spherical surface
Surface Treatment Document And Classification: qq-c-320,cl 2 fed spec single treatment response right end surface
Surface Treatment Document And Classification: qq-c-320,cl 2 fed spec single treatment response left end surface
Surface Treatment Document And Classification: qq-c-320,cl 2 fed spec single treatment response spherical surface
Style Designator: solid
Test Data Document: "97499-4075 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.). and 97499-4092 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."

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:

Part Number	Name
204-076-168-001	Spherical Plain Bearing
204-076-168-1	Spherical Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-840-2729?

The FSCG of the NSN 3120-00-840-2729 is 3120

Does the NSN 3120-00-840-2729 have a Schedule B code assigned?

Yes, the Schedule B code is 8482300040

Does NSN 3120-00-840-2729 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 3120-00-840-2729 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-840-2729 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 3120-00-840-2729 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962