GB520BT30

View detailed technical data, stock status, and sourcing information for: GB520BT30
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-765-2031

Item Name Code

13208

Assigment Date

04/14/1972 (54 years ago)

1.0660 inches minimum and 1.0760 inches maximum outer member width, 1.4980 inches minimum and 1.5000 inches maximum inner member width, 2.7807 inches minimum and 2.7812 inches maximum outer member outside diameter, 184500 pounds static radial load rating, 1.8745 inches minimum and 1.8750 inches maximum bore diameter

Product Characteristics

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

Bore Diameter: 1.8745 inches minimum and 1.8750 inches maximum
Outer Member Outside Diameter: 2.7807 inches minimum and 2.7812 inches maximum
Outer Member Width: 1.0660 inches minimum and 1.0760 inches maximum
Inner Member Width: 1.4980 inches minimum and 1.5000 inches maximum
Static Radial Load Rating: 184500 pounds
Hardness Rating: 39.0 rockwell c minimum and 42.0 rockwell c maximum inner member
Hardness Rating: 23.0 rockwell c minimum and 35.0 rockwell c maximum outer race member
Special Features: plating omitted from bore
Material: plastic polytetrafluoroethylene race liner
Material: steel comp 4340 or steel comp 630 or steel comp 410 inner member
Surface Treatment: chromium inner member
Style Designator: with insert and/or liner with staking groove

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
76750	Self-Aligning Plain Bearing
GB520BT30	Self-Aligning Plain Bearing
KSBN30-3	Self-Aligning Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-765-2031?

The FSCG of the NSN 3120-00-765-2031 is 3120

Does the NSN 3120-00-765-2031 have a Schedule B code assigned?

Yes, the Schedule B code is 8482300040

Does NSN 3120-00-765-2031 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 3120-00-765-2031 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-765-2031 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 3120-00-765-2031 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Apr 14, 1972