439B903 Sleeve Bushing

Comprehensive specifications and application details for: 439B903 Sleeve Bushing.

Summary

Explore detailed summary information for bearing: 439B903. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 439B903
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-231-4530
Item Name Code: 13206
Federal Item Identification Guide: A045A0
Assigment Date: 04/29/1986

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.

square center flange outside left corner corner shape, 0.9990 inches minimum and 1.0000 inches maximum body inside diameter, chamfered outside left corner corner shape, round center flange right body corner corner shape, chamfered center flange outside right corner corner shape

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-231-4530 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter: 0.9990 inches minimum and 1.0000 inches maximum
Corner Shape: chamfered center flange outside right corner
Corner Shape: chamfered outside left corner
Corner Shape: round center flange right body corner
Corner Shape: square center flange outside left corner
Corner Shape: round inside left corner
Corner Shape: round inside right corner
Corner Shape: square outside right corner
Corner Shape: undercut center flange left body corner
End To Flange Distance: 2.0000 inches nominal
Flange Outside Diameter: 2.6200 inches nominal
Flange Width: 0.5000 inches nominal
Left End Body Diameter: 2.1245 inches minimum and 2.1250 inches maximum
Lubricant Accommodation Style: grooved circular
Overall Length: 3.0000 inches nominal
Material Document And Classification: mil-s-869,cl a,cond 2 mil spec single material response overall
Material: steel comp 135m overall
Right End Body Diameter: 2.0000 inches nominal
Style Designator: solid, external flange
Surface Finish: 32.0 microinches inside diameter surface of body
Surface Finish: 63.0 microinches outside diameter surface of body
Surface Finish: 63.0 microinches left end surface of flange
Surface Groove Location And Quantity: 1 external

Frequently Asked Questions

Find quick answers to common questions about bearing: 439B903. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-231-4530?: The FSCG of the NSN 3120-01-231-4530 is 3120

Does the NSN 3120-01-231-4530 have a Schedule B code assigned?: Yes, the Schedule B code is 8482997060

Does NSN 3120-01-231-4530 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 3120-01-231-4530 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-01-231-4530 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.