BLFN-4-318-1

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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-117-0032

Item Name Code

13208

Assigment Date

08/07/1981 (44 years ago)

0.3730 inches minimum and 0.3750 inches maximum inner 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, 0.2450 inches minimum and 0.2550 inches maximum outer member width, 6040 pounds static radial load rating

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 minimum and 0.2550 inches maximum
Inner Member Width: 0.3730 inches minimum and 0.3750 inches maximum
Static Radial Load Rating: 6040 pounds
Hardness Rating: 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member
Hardness Rating: 23.0 rockwell c minimum and 35.0 rockwell c maximum outer race member
Lubrication Feature: self-lubricating liner bore liner
Functional Description: used to 325.0 deg f max
Material: plastic polytetrafluoroethylene race liner
Material: steel comp 440c inner member
Material: steel comp 630 or steel comp 631 or steel comp 410 outer race member
Material Document And Classification: ams5630,uns s44004 assn std single material response inner member
Material Document And Classification: ams5643,uns s17400 assn std 1st material response or ams5528,uns s17700 assn std 2nd material response or aisi/sae j405,uns s41000 assn std 3rd material response outer race member
Relationship To Similar Equipment: similar to nsn 3120-00-332-4401 mfr std r/n 76301-st4m137-4
Style Designator: with insert and/or liner
Specification/Standard Data: 96906-ms21233 government standard

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
03-703-04	Self-Aligning Plain Bearing
BLFN-4-318-1	Self-Aligning Plain Bearing
KNDB4-2	Self-Aligning Plain Bearing
MS21233-4	Self-Aligning Plain Bearing
NHB4	Self-Aligning Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-117-0032?

The FSCG of the NSN 3120-01-117-0032 is 3120

Does the NSN 3120-01-117-0032 have a Schedule B code assigned?

Yes, the Schedule B code is 8482300040

Does NSN 3120-01-117-0032 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 3120-01-117-0032 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-117-0032 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 3120-01-117-0032 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Fri, Aug 7, 1981