MS21242S-8 Rod End Plain Bearing
Comprehensive specifications and application details for: MS21242S-8 Rod End Plain Bearing.
Summary
Explore detailed summary information for bearing: MS21242S-8. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.
- Part Number
- MS21242S-8
- Federal Supply Classification
- 3120 Unmounted Plain Bearings
- (NSN) National Stock Number
- 3120-01-140-9939
- Item Name Code
- 13209
- Federal Item Identification Guide
- A045A0
- Assigment Date
- 10/21/1982
A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The outer member of the assembly is modified to provide a shank. The inner member may be either a plain spherical bearing or a sleeve bearing. Excludes:bearing, plain, spherical and bearing, plain, self-aligning.
2.4280 inches minimum and 2.4480 inches maximum bore center to shank end distance, 28.0 rockwell c minimum and 37.0 rockwell c maximum race insert hardness rating, 0.4995 inches minimum and 0.5000 inches maximum bore diameter, 39.0 rockwell c minimum and 42.0 rockwell c maximum rod end body hardness rating, 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member hardness rating
Datasheet
Below are the comprehensive technical specifications for bearing: 3120-01-140-9939 . Find dimensions, materials, tolerances, performance characteristics, etc.
- Bore Diameter
- 0.4995 inches minimum and 0.5000 inches maximum
- Bore Center To Shank End Distance
- 2.4280 inches minimum and 2.4480 inches maximum
- Hardness Rating
- 39.0 rockwell c minimum and 42.0 rockwell c maximum rod end body
- Hardness Rating
- 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member
- Hardness Rating
- 28.0 rockwell c minimum and 37.0 rockwell c maximum race insert
- Inner Member Width
- 0.6230 inches minimum and 0.6250 inches maximum
- Overall Length
- 3.1065 inches nominal
- Material Document And Classification
- ams5630 assn std single material response inner member
- Material Document And Classification
- ams5643 assn std single material response race insert
- Material Document And Classification
- mil-b-81820 mil spec all material responses race liner
- Material Document And Classification
- mil-s-5000 mil spec single material response rod end body
- Material
- plastic polytetrafluoroethylene and plastic polyamide (nylon) and plastic phenolic race liner
- Material
- steel comp 440c inner member
- Material
- steel comp 630 race insert
- Material
- steel comp e4340 rod end body
- Outer Member Outside Diameter
- 1.3270 inches minimum and 1.3470 inches maximum
- Outer Member Width
- 0.5100 inches minimum and 0.5200 inches maximum
- Shank Thread Length
- 1.4370 inches minimum and 1.4990 inches maximum
- Shank Style
- externally threaded
- Static Radial Load Rating
- 19500 pounds
- Style Designator
- ball type
- Surface Treatment Document And Classification
- qq p-416,ty 2,cl 2 fed spec single treatment response rod end body
- Surface Treatment
- cadmium and chromate rod end body
- Thread Class
- 3a
- Thread Diameter
- 0.500 inches nominal
- Thread Direction
- left-hand
- Thread Quantity Per Inch
- 20
- Thread Series Designator
- unjf
Frequently Asked Questions
Find quick answers to common questions about bearing: MS21242S-8. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.
- What is the FSCG of the NSN 3120-01-140-9939?
- The FSCG of the NSN 3120-01-140-9939 is 3120
- Does the NSN 3120-01-140-9939 have a Schedule B code assigned?
- Yes, the Schedule B code is 8483308055
- Does NSN 3120-01-140-9939 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 3120-01-140-9939 contain precious materials?
- Item does not contain precious metal.
- Does NSN 3120-01-140-9939 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 3120-01-140-9939 was assigned to the Federal Catalog?
- It was assigned 43 years ago, on Thu, Oct 21, 1982
Price & Availability
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Stock Availability
This product is available in the following quantities and conditions:
| New Surplus | 6 |
| New Material | 44 |
| Total | 50 |
Availability of this item was last updated on:
01/05/2026 11:01 AM EST.
Availability may have changed since then. Request a quote for up to date pricing and availability.