3120-00-418-4978 Sleeve Bushing

Comprehensive specifications and application details for NSN: 3120-00-418-4978.

Summary

Explore detailed summary information for bearing: 3120-00-418-4978. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-418-4978
Item Name Code: 13206
Federal Item Identification Guide: A045A0
Assigment Date: 02/04/1972

A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.

2.2490 inches minimum and 2.2495 inches maximum body outside diameter, chamfered inside left corner corner shape, chamfered inside right corner corner shape, round left flange body corner corner shape, 2.0010 inches minimum and 2.0020 inches maximum body inside diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-418-4978 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter: 2.0010 inches minimum and 2.0020 inches maximum
Body Outside Diameter: 2.2490 inches minimum and 2.2495 inches maximum
Corner Shape: chamfered inside left corner
Corner Shape: chamfered inside right corner
Corner Shape: round left flange body corner
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square outside right corner
Flange Outside Diameter: 2.6100 inches minimum and 2.6300 inches maximum
Flange Width: 0.1240 inches minimum and 0.1250 inches maximum
Hardness Rating: 40.0 rockwell c minimum and 45.0 rockwell c maximum overall
Overall Length: 1.9300 inches minimum and 1.9500 inches maximum
Material: steel comp 4130 or steel comp 4340 overall
Style Designator: solid, external flange one end
Surface Finish: 125.0 microinches intermediate layer
Test Data Document: "81349-mil-i-6868 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."

Related Bearings

Explore the various bearing models associated with this NSN. Click on any bearing below to view detailed technical data, performance ratings, and application guidelines.

Part Number	Name
135B5964	Sleeve Bushing

Frequently Asked Questions

Find quick answers to common questions about bearing: 3120-00-418-4978. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-418-4978?: The FSCG of the NSN 3120-00-418-4978 is 3120

Does the NSN 3120-00-418-4978 have a Schedule B code assigned?: Yes, the Schedule B code is 8482997060

Does NSN 3120-00-418-4978 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 3120-00-418-4978 contain precious materials?: Precious metal content is unknown

Does NSN 3120-00-418-4978 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.