MS21241-05C008
View detailed technical data, stock status, and sourcing information for: MS21241-05C008
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Federal Supply Group
Bearings
Federal Supply Classification
3120 Unmounted Plain Bearings
National Stock Number
3120-00-227-5868
Item Name Code
13205
Assigment Date
03/10/1971 (55 years ago)
0.3130 inches minimum and 0.3140 inches maximum body inside diameter, 0.7920 inches minimum and 0.8120 inches maximum flange outside diameter, 0.2975 inches minimum and 0.3125 inches maximum overall length, 0.4381 inches minimum and 0.4386 inches maximum body outside diameter, 0.0575 inches minimum and 0.0625 inches maximum flange width
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Overall Length
- 0.2975 inches minimum and 0.3125 inches maximum
- Body Outside Diameter
- 0.4381 inches minimum and 0.4386 inches maximum
- Body Inside Diameter
- 0.3130 inches minimum and 0.3140 inches maximum
- Flange Outside Diameter
- 0.7920 inches minimum and 0.8120 inches maximum
- Flange Width
- 0.0575 inches minimum and 0.0625 inches maximum
- Corner Shape
- square left flange outside right corner
- Corner Shape
- square outside left corner
- Corner Shape
- square inside left corner
- Corner Shape
- square inside right corner
- Corner Shape
- square outside right corner
- Corner Shape
- undercut left flange body corner
- Hardness Rating
- 27.0 rockwell c minimum and 32.0 rockwell c maximum outer layer
- Surface Finish
- 125.0 microinches outside diameter surface of flange
- Surface Finish
- 125.0 microinches right end surface of body
- Surface Finish
- 125.0 microinches right end surface of left flange
- Surface Finish
- 63.0 microinches outside diameter surface of body
- Special Features
- plastic /tetrafluoroethylene/ liner bonded to left flange face
- Material Document And Classification
- 66,aisi 410/sae 51410 fed std 1st material response or 66,aisi 416/sae 51416 fed std 2nd material response or ams 5643 assn std 3rd material response outer layer
- Style Designator
- solid, external flange one end
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 3120-00-453-8367 | No Name Available | 09/05/1973 |
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 123-2005-008 | Sleeve Bearing |
| ATLF05SS08 | Sleeve Bearing |
| KDJ05C008-241 | Sleeve Bearing |
| KDJQ5C00-342 | Sleeve Bearing |
| KJN05C008-241 | Sleeve Bearing |
| MS21241-05C008 | Sleeve Bearing |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 3120-00-227-5868?
The FSCG of the NSN 3120-00-227-5868 is 3120
Does the NSN 3120-00-227-5868 have a Schedule B code assigned?
Yes, the Schedule B code is 8482997090
Does NSN 3120-00-227-5868 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 3120-00-227-5868 contain precious materials?
Precious metal content is unknown
Does NSN 3120-00-227-5868 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.
When the NSN 3120-00-227-5868 was assigned to the Federal Catalog?
It was assigned 55 years ago, on Wed, Mar 10, 1971
Professional Distribution
Certified to meet the strict requirements of defense, aerospace, and hazardous materials distribution.
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- HAZMAT Certified
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Pricing
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In Stock
This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.
| New Surplus | 95 |
| New Material | 2,161 |
| Total | 2,256 |
Availability of this item was last updated on:
02/18/2026 07:02 AM EST.
Stock levels and pricing are subject to change.