M81935/1-8

View detailed technical data, stock status, and sourcing information for: M81935/1-8
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-144-3857

Item Name Code

13209

Assigment Date

12/20/1982 (43 years ago)

3.1065 inches nominal overall length, externally threaded shank style, 0.4995 inches minimum and 0.5000 inches maximum bore diameter, 3a thread class, right-hand thread direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3a
Thread Direction: right-hand
Shank Style: externally threaded
Overall Length: 3.1065 inches nominal
Bore Diameter: 0.4995 inches minimum and 0.5000 inches maximum
Outer Member Outside Diameter: 1.3270 inches minimum and 1.3470 inches maximum
Bore Center To Shank End Distance: 2.4280 inches minimum and 2.4480 inches maximum
Outer Member Width: 0.5100 inches minimum and 0.5200 inches maximum
Inner Member Width: 0.6230 inches minimum and 0.6250 inches maximum
Shank Thread Length: 1.4370 inches minimum and 1.4990 inches maximum
Static Radial Load Rating: 19500 pounds
Thread Diameter: 0.500 inches nominal
Thread Quantity Per Inch: 20
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
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
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
Surface Treatment: cadmium and chromate rod end body
Surface Treatment Document And Classification: qq-p-416,type 2,class fed spec single treatment response rod end body
Style Designator: ball type
Thread Series Designator: unjf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3120-00-038-8571	No Name Available	09/01/1990
3120-01-313-0002	No Name Available	01/01/1992

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
KR8-MSB	Rod End Plain Bearing
M81935/1-08	Rod End Plain Bearing
M81935/1-8	Rod End Plain Bearing

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 3120-01-144-3857?

The FSCG of the NSN 3120-01-144-3857 is 3120

Does the NSN 3120-01-144-3857 have a Schedule B code assigned?

Yes, the Schedule B code is 8483308055

Does NSN 3120-01-144-3857 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 3120-01-144-3857 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-144-3857 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 3120-01-144-3857 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Mon, Dec 20, 1982