BLFR4 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: BLFR4 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: BLFR4. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: BLFR4
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-990-2108
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 01/01/1962

A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes:bearing, plain, rod end and bearing, plain, spherical.

steel comp 440c inner member material, 0.2495 inches minimum and 0.2500 inches maximum bore diameter, 0.6245 inches minimum and 0.6250 inches maximum outer member outside diameter, steel corrosion resisting outer race member material, 0.4320 inches minimum and 0.4370 inches maximum inner member width

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-990-2108 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.2495 inches minimum and 0.2500 inches maximum
Inner Member Width: 0.4320 inches minimum and 0.4370 inches maximum
Material: steel comp 440c inner member
Material: steel corrosion resisting outer race member
Outer Member Outside Diameter: 0.6245 inches minimum and 0.6250 inches maximum
Outer Member Width: 0.3220 inches nominal
Special Features: with dyflon insert,lubrication not required
Style Designator: without insert or liner

Replaces

The NSN 3120-00-990-2108 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-781-3962	No Name Available	01/01/1960

Frequently Asked Questions

Find quick answers to common questions about bearing: BLFR4. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-990-2108?: The FSCG of the NSN 3120-00-990-2108 is 3120

Does the NSN 3120-00-990-2108 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-00-990-2108 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 3120-00-990-2108 contain precious materials?: Precious metal content is unknown

Does NSN 3120-00-990-2108 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.