A51B20605-21

View detailed technical data, stock status, and sourcing information for: A51B20605-21
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-007-0003

Item Name Code

13206

Assigment Date

06/30/1972 (54 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.

125.0 microinches intermediate layer surface finish, 0.7490 inches minimum and 0.7500 inches maximum overall length, square all corners corner shape, 0.5000 inches minimum and 0.5015 inches maximum body inside diameter, 0.6268 inches minimum and 0.6273 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: 0.7490 inches minimum and 0.7500 inches maximum
Body Outside Diameter: 0.6268 inches minimum and 0.6273 inches maximum
Body Inside Diameter: 0.5000 inches minimum and 0.5015 inches maximum
Corner Shape: square all corners
Surface Finish: 125.0 microinches intermediate layer
Material: steel comp xm-12 overall
Material Document And Classification: ams 5659 comp 155ph assn std single material response overall
Style Designator: solid, plain, no outside flanges

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
2590000070003	Sleeve Bushing
A51B20605-21	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-00-007-0003?

The FSCG of the NSN 3120-00-007-0003 is 3120

Does the NSN 3120-00-007-0003 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-00-007-0003 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 3120-00-007-0003 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-007-0003 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 3120-00-007-0003 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Jun 30, 1972