FB4 Annular Ball Bearing

Comprehensive specifications and application details for: FB4 Annular Ball Bearing.

Summary

Explore detailed summary information for bearing: FB4. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: FB4
Federal Supply Classification: 3110 Unmounted Antifriction Bearings
(NSN) National Stock Number: 3110-00-157-1908
Item Name Code: 00014
Federal Item Identification Guide: A044A0
Assigment Date: 01/01/1963

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing,ball,duplex. Excludes:bearing,ball,airframe.

straight bore shape, 0.2500 inches minimum and 0.2503 inches maximum bore diameter, 0.2480 inches minimum and 0.2520 inches maximum inner ring width, 0.6920 inches nominal flange outside diameter, 0.0470 inches nominal flange width

Datasheet

Below are the comprehensive technical specifications for bearing: 3110-00-157-1908 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.2500 inches minimum and 0.2503 inches maximum
Bore Shape: straight
Flange Outside Diameter: 0.6920 inches nominal
Flange Width: 0.0470 inches nominal
Inner Ring Width: 0.2480 inches minimum and 0.2520 inches maximum
Internal Fit-Up Designation: standard
Load Direction: radial
Outer Ring Taper: 0.6253 per foot in inches nominal
Outer Ring Width: 0.2290 inches nominal
Material: copper alloy retainer
Material: steel ball
Material: steel inner ring
Material: steel outer ring
Retainer Fabrication Method: pressed
Style Designator: non-loading groove, non-separable
Surface Finish: ground

Replaces

The NSN 3110-00-157-1908 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3110-00-227-4329	No Name Available	01/01/1960
3110-00-887-1499	No Name Available	10/01/1975

Frequently Asked Questions

Find quick answers to common questions about bearing: FB4. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3110-00-157-1908?: The FSCG of the NSN 3110-00-157-1908 is 3110

Does the NSN 3110-00-157-1908 have a Schedule B code assigned?: Yes, the Schedule B code is 8482105028

Does NSN 3110-00-157-1908 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 3110-00-157-1908 contain precious materials?: Item does not contain precious metal.

Does NSN 3110-00-157-1908 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.