BACB28T6-21

View detailed technical data, stock status, and sourcing information for: BACB28T6-21
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-780-8389

Item Name Code

13206

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.

0.2620 inches minimum and 0.2770 inches maximum overall length, 0.3745 inches minimum and 0.3765 inches maximum body inside diameter, 0.0570 inches minimum and 0.0620 inches maximum flange width, 1.1150 inches minimum and 1.1350 inches maximum flange outside diameter, 0.5006 inches minimum and 0.5013 inches maximum body outside 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: 0.2620 inches minimum and 0.2770 inches maximum
Body Outside Diameter: 0.5006 inches minimum and 0.5013 inches maximum
Body Inside Diameter: 0.3745 inches minimum and 0.3765 inches maximum
Flange Outside Diameter: 1.1150 inches minimum and 1.1350 inches maximum
Flange Width: 0.0570 inches minimum and 0.0620 inches maximum
Corner Shape: chamfered outside right corner
Corner Shape: chamfered left flange outside right corner
Corner Shape: chamfered outside left corner
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Corner Shape: undercut left flange body corner
Surface Finish: 100.0 microinches left end surface of body and flange
Surface Finish: 100.0 microinches outside diameter surface of flange
Surface Finish: 100.0 microinches right end surface of body
Surface Finish: 100.0 microinches right end surface of left flange
Surface Finish: 80.0 microinches outside diameter surface of body
Surface Finish: 80.0 microinches inside diameter surface of body
Material: steel comp 4130 overall
Material Document And Classification: 66 fed std single material response overall
Surface Treatment: cadmium overall
Style Designator: solid, external flange one end

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
BACB28T6-21	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-00-780-8389?

The FSCG of the NSN 3120-00-780-8389 is 3120

Does the NSN 3120-00-780-8389 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-00-780-8389 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 3120-00-780-8389 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-780-8389 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 3120-00-780-8389 was assigned to the Federal Catalog?

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