3120-01-011-9721

Find complete technical information, availability, and procurement data for: 3120-01-011-9721
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-011-9721

Item Name Code

13206

Assigment Date

11/02/1975 (50 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.

1.7500 inches nominal flange outside diameter, 0.4950 inches minimum and 0.5000 inches maximum overall length, 1.4711 inches minimum and 1.4726 inches maximum body outside diameter, 0.1250 inches nominal first hole diameter, 1.2350 inches minimum and 1.2450 inches maximum body inside diameter

Product Characteristics

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

Hole Diameter: 0.1250 inches nominal first
Overall Length: 0.4950 inches minimum and 0.5000 inches maximum
Body Outside Diameter: 1.4711 inches minimum and 1.4726 inches maximum
Body Inside Diameter: 1.2350 inches minimum and 1.2450 inches maximum
Flange Outside Diameter: 1.7500 inches nominal
Flange Width: 0.1150 inches minimum and 0.1200 inches maximum
Lubricant Accommodation Style: grooved circular
Corner Shape: chamfered inside left corner
Corner Shape: chamfered inside right corner
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square outside right corner
Corner Shape: undercut left flange body corner
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Antirotation/Lubrication Type And Quantity: 1 hole
Surface Groove Location And Quantity: 1 external and 1 internal
Material: steel comp 4130 overall
Surface Treatment: tin overall
Style Designator: solid, external flange one end
Test Data Document: "81349-mil-i-6868 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 81349-mil-i-8950 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
28-610500-19	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-01-011-9721?

The FSCG of the NSN 3120-01-011-9721 is 3120

Does the NSN 3120-01-011-9721 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-01-011-9721 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 3120-01-011-9721 contain precious materials?

Precious metal content is unknown

Does NSN 3120-01-011-9721 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 3120-01-011-9721 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sun, Nov 2, 1975