M81935/1-04KL

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M81935/1-04KL
Federal Supply Group
Bearings
Federal Supply Classification
3120 Unmounted Plain Bearings
National Stock Number
3120-01-180-0539
Item Name Code
13209
Assigment Date
05/24/1984 (42 years ago)

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.

left-hand thread direction, 0.2495 inches minimum and 0.2500 inches maximum bore diameter, 1.9650 inches nominal overall length, externally threaded shank style, 3a thread class

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
left-hand
Shank Style
externally threaded
Overall Length
1.9650 inches nominal
Bore Diameter
0.2495 inches minimum and 0.2500 inches maximum
Outer Member Outside Diameter
0.7960 inches minimum and 0.8160 inches maximum
Bore Center To Shank End Distance
1.5520 inches minimum and 1.5720 inches maximum
Outer Member Width
0.3320 inches minimum and 0.3420 inches maximum
Inner Member Width
0.4350 inches minimum and 0.4370 inches maximum
Shank Thread Length
0.9370 inches minimum and 0.9990 inches maximum
Static Radial Load Rating
4860 pounds
Thread Diameter
0.312 inches nominal
Thread Quantity Per Inch
24
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 outer ring
Special Features
keyway in shank 0.093 in. min wide 0.098 in. max wide; 0.060 in. min deep 0.065 in. max deep; surface finish on ball passivate per mil-s-5002 optional
Material
plastic polytetrafluoroethylene race liner
Material
steel comp 440c inner member
Material
steel comp 630 outer ring
Material
steel comp e4340 rod end body
Material Document And Classification
ams 5630 assn std single material response inner member
Material Document And Classification
ams 5643 assn std single material response outer ring
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 2 fed spec single treatment response rod end body
Style Designator
ball type
Thread Series Designator
unjf
Specification/Standard Data
81349-mil-b-81935/1a government specification

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
10388187 Rod End Plain Bearing
EMRL6-35RGKX Rod End Plain Bearing
M81935/1-04KL Rod End Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-180-0539?
The FSCG of the NSN 3120-01-180-0539 is 3120
Does the NSN 3120-01-180-0539 have a Schedule B code assigned?
Yes, the Schedule B code is 8483308055
Does NSN 3120-01-180-0539 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 3120-01-180-0539 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-01-180-0539 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 3120-01-180-0539 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Thu, May 24, 1984

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