M81935/2-4K

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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-194-2259

Item Name Code

13209

Assigment Date

11/10/1984 (41 years ago)

3b thread class, 1.8570 inches minimum and 1.8870 inches maximum overall length, internally threaded w/hexagon end and inspection hole shank style, 0.2495 inches minimum and 0.2500 inches maximum bore diameter, 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: 3b
Thread Direction: right-hand
Shank Style: internally threaded w/hexagon end and inspection hole
Overall Length: 1.8570 inches minimum and 1.8870 inches maximum
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: 1.4590 inches minimum and 1.4790 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: 0.7500 inches minimum
Inspection Hole Center To End Distance: 0.3550 inches minimum and 0.3950 inches maximum
Shank Width Across Wrench Flats: 0.4270 inches minimum and 0.4390 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 race insert
Special Features: 2 keyway slots perpendicular to hoop face 0.055 nom in. deep
Material: plastic polytetrafluoroethylene 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: ams 5630 assn std single material response inner member
Material Document And Classification: ams 5643 assn std single material response race insert
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-81935/2 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
02-824-041	Rod End Plain Bearing
04A078-4K	Rod End Plain Bearing
ADN4JW	Rod End Plain Bearing
ANF4W	Rod End Plain Bearing
ANF4W(L1)	Rod End Plain Bearing
FXJKRR4AS	Rod End Plain Bearing
KBD4-243	Rod End Plain Bearing
KBD4-935W	Rod End Plain Bearing
M81935/2-4K	Rod End Plain Bearing
REF8W10-2M	Rod End Plain Bearing
SWRKFS-4-500	Rod End Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-194-2259?

The FSCG of the NSN 3120-01-194-2259 is 3120

Does the NSN 3120-01-194-2259 have a Schedule B code assigned?

Yes, the Schedule B code is 8483308055

Does NSN 3120-01-194-2259 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 3120-01-194-2259 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-194-2259 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 3120-01-194-2259 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Sat, Nov 10, 1984