MIL-B-81935/4

View detailed technical data, stock status, and sourcing information for: MIL-B-81935/4
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-325-9897

Item Name Code

13209

Assigment Date

09/15/1990 (35 years ago)

An electronic device whose video frequency input signals control power from a source independent of the input signals, and delivers output signals of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It is generally used in equipment in which the electrical impulses are converted into visual presentation by means of cathode ray tubes or other items.

0.3120 inches minimum and 0.3125 inches maximum bore diameter, externally threaded shank style, right-hand thread direction, 2.4400 inches nominal overall length, 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: right-hand
Shank Style: externally threaded
Overall Length: 2.4400 inches nominal
Bore Diameter: 0.3120 inches minimum and 0.3125 inches maximum
Outer Member Outside Diameter: 0.9740 inches minimum and 0.9940 inches maximum
Bore Center To Shank End Distance: 1.9380 inches minimum and 1.9580 inches maximum
Outer Member Width: 0.2860 inches minimum and 0.2960 inches maximum
Inner Member Width: 0.3730 inches minimum and 0.3750 inches maximum
Shank Thread Length: 1.1560 inches minimum and 1.2180 inches maximum
Static Radial Load Rating: 8600 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: keyway in shank; 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 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 mil spec 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-81935/4 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
KBDE-5-101W	Rod End Plain Bearing
M81935/4-05K	Rod End Plain Bearing
MIL-B-81935/4	Rod End Plain Bearing
SAE-AS81935/4	Rod End Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-325-9897?

The FSCG of the NSN 3120-01-325-9897 is 3120

Does the NSN 3120-01-325-9897 have a Schedule B code assigned?

Yes, the Schedule B code is 8483308055

Does NSN 3120-01-325-9897 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 3120-01-325-9897 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-325-9897 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 3120-01-325-9897 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Sat, Sep 15, 1990