A51B25554-13

View detailed technical data, stock status, and sourcing information for: A51B25554-13
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-003-3925

Item Name Code

13206

Assigment Date

05/26/1972 (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.

1.4387 inches minimum and 1.4416 inches maximum body inside diameter, 0.3900 inches minimum and 0.4000 inches maximum overall length, 1.5630 inches minimum and 1.5635 inches maximum body outside diameter, 125.0 microinches intermediate layer surface finish, square all corners corner shape

Product Characteristics

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

Overall Length: 0.3900 inches minimum and 0.4000 inches maximum
Body Outside Diameter: 1.5630 inches minimum and 1.5635 inches maximum
Body Inside Diameter: 1.4387 inches minimum and 1.4416 inches maximum
Corner Shape: square all corners
Surface Finish: 125.0 microinches intermediate layer
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
A51B25554-13	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-00-003-3925?

The FSCG of the NSN 3120-00-003-3925 is 3120

Does the NSN 3120-00-003-3925 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-00-003-3925 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 3120-00-003-3925 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-003-3925 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 3120-00-003-3925 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, May 26, 1972