3120-00-251-7321

Find complete technical information, availability, and procurement data for: 3120-00-251-7321
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-251-7321

Item Name Code

13205

Assigment Date

07/18/1969 (57 years ago)

Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.

0.6250 inches minimum and 0.6255 inches maximum body outside diameter, 0.5000 inches minimum and 0.5020 inches maximum body inside diameter, 0.0550 inches minimum and 0.0650 inches maximum flange width, 0.7400 inches minimum and 0.7600 inches maximum flange outside diameter, 0.5500 inches minimum and 0.5700 inches maximum overall length

Product Characteristics

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

Overall Length: 0.5500 inches minimum and 0.5700 inches maximum
Body Outside Diameter: 0.6250 inches minimum and 0.6255 inches maximum
Body Inside Diameter: 0.5000 inches minimum and 0.5020 inches maximum
Flange Outside Diameter: 0.7400 inches minimum and 0.7600 inches maximum
Flange Width: 0.0550 inches minimum and 0.0650 inches maximum
Corner Shape: square left flange body corner
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Corner Shape: square outside right corner
Material: copper alloy and plastic polytetrafluoroethylene and lead alloy inner layer
Material: steel corrosion resisting outer layer
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
137-217-9006	Sleeve Bearing
AFDU8SS6	Sleeve Bearing
AFJDU8SS06	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-251-7321?

The FSCG of the NSN 3120-00-251-7321 is 3120

Does the NSN 3120-00-251-7321 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-251-7321 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 3120-00-251-7321 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-251-7321 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 3120-00-251-7321 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Jul 18, 1969