PRB4

View detailed technical data, stock status, and sourcing information for: PRB4
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-661-7138

Item Name Code

13208

Assigment Date

01/01/1963 (63 years ago)

0.2450 inches nominal outer member width, 0.2495 inches minimum and 0.2500 inches maximum bore diameter, 0.6557 inches minimum and 0.6562 inches maximum outer member outside diameter, groove external outer member lubrication feature, 0.3380 inches minimum and 0.3430 inches maximum inner member width

Product Characteristics

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

Bore Diameter: 0.2495 inches minimum and 0.2500 inches maximum
Outer Member Outside Diameter: 0.6557 inches minimum and 0.6562 inches maximum
Outer Member Width: 0.2450 inches nominal
Inner Member Width: 0.3380 inches minimum and 0.3430 inches maximum
Lubrication Feature: groove external outer member
Material: copper alloy outer race member
Material: steel inner member
Surface Treatment: cadmium outer race member
Style Designator: without insert or liner

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
0404L	Self-Aligning Plain Bearing
4M71A4G	Self-Aligning Plain Bearing
BLN4003GC	Self-Aligning Plain Bearing
BLN4003GCMILG3278	Self-Aligning Plain Bearing
PRB4	Self-Aligning Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-661-7138?

The FSCG of the NSN 3120-00-661-7138 is 3120

Does the NSN 3120-00-661-7138 have a Schedule B code assigned?

Yes, the Schedule B code is 8482300040

Does NSN 3120-00-661-7138 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 3120-00-661-7138 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-661-7138 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 3120-00-661-7138 was assigned to the Federal Catalog?

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