21-256 Sleeve Bearing Half

Comprehensive specifications and application details for: 21-256 Sleeve Bearing Half.

Summary

Explore detailed summary information for bearing: 21-256. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 21-256
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-448-3472
Item Name Code: 22210
Federal Item Identification Guide: A045A0
Assigment Date: 01/01/1963

A half of a two-piece split type bearing, sleeve.

2.4380 inches minimum and 2.4385 inches maximum body inside diameter, 2.6240 inches minimum and 2.6250 inches maximum body outside diameter, 0.4280 inches minimum and 0.4375 inches maximum distance from lug end to end of bearing, 1 hole antirotation/lubrication type and quantity, 3.3125 inches nominal left flange outside diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-448-3472 . Find dimensions, materials, tolerances, performance characteristics, etc.

Distance From Lug End To End Of Bearing: 0.4280 inches minimum and 0.4375 inches maximum
Antirotation/Lubrication Type And Quantity: 1 hole
Body Inside Diameter: 2.4380 inches minimum and 2.4385 inches maximum
Body Outside Diameter: 2.6240 inches minimum and 2.6250 inches maximum
Left Flange Outside Diameter: 3.3125 inches nominal
Left Flange Width: 0.0875 inches minimum and 0.0895 inches maximum
Locking Lug Height: 0.0450 inches minimum and 0.0550 inches maximum
Locking Lug Length: 0.1875 inches minimum and 0.2188 inches maximum
Locking Lug Width: 0.1750 inches minimum and 0.1800 inches maximum
Lubricant Accommodation Style: grooved circular
Overall Length: 1.6180 inches minimum and 1.6200 inches maximum
Right Flange Outside Diameter: 3.3125 inches nominal
Right Flange Width: 0.0875 inches minimum and 0.0895 inches maximum
Style Designator: half sleeve, external flanges both ends
Surface Groove Location And Quantity: 1 internal

Frequently Asked Questions

Find quick answers to common questions about bearing: 21-256. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-448-3472?: The FSCG of the NSN 3120-00-448-3472 is 3120

Does the NSN 3120-00-448-3472 have a Schedule B code assigned?: Yes, the Schedule B code is 8483308090

Does NSN 3120-00-448-3472 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 3120-00-448-3472 contain precious materials?: Precious metal content is unknown

Does NSN 3120-00-448-3472 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.