MBD257

View detailed technical data, stock status, and sourcing information for: MBD257
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-288-2039

Item Name Code

13205

Assigment Date

01/01/1963 (63 years ago)

0.7530 inches minimum and 0.7540 inches maximum body inside diameter, square all corners corner shape, 0.9170 inches minimum and 0.9270 inches maximum overall length, lubricant impregnated w/sae 40 oil special features, 0.8775 inches minimum and 0.8785 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: 0.9170 inches minimum and 0.9270 inches maximum
Body Outside Diameter: 0.8775 inches minimum and 0.8785 inches maximum
Body Inside Diameter: 0.7530 inches minimum and 0.7540 inches maximum
Corner Shape: square all corners
Special Features: lubricant impregnated w/sae 40 oil
Material: copper alloy overall
Material: oil lubricating lubrication
Material Document And Classification: mil-b-5697,ty 1,comp a mil spec single material response overall
Material Document And Classification: sae 40 assn std single material response lubrication
Style Designator: solid, plain, no outside flanges

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3120-00-288-1936	No Name Available	01/01/1960
2920-00-512-3090	No Name Available	06/03/1966

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
MBD257	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-288-2039?

The FSCG of the NSN 3120-00-288-2039 is 3120

Does the NSN 3120-00-288-2039 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-288-2039 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 3120-00-288-2039 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-288-2039 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 3120-00-288-2039 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963