EMRL7-94RGKX

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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-180-0540

Item Name Code

13209

Assigment Date

05/24/1984 (42 years ago)

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.

externally threaded shank style, 2.3250 inches nominal overall length, 0.3120 inches minimum and 0.3125 inches maximum bore diameter, left-hand thread direction, 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: 2.3250 inches nominal
Bore Diameter: 0.3120 inches minimum and 0.3125 inches maximum
Outer Member Outside Diameter: 0.8900 inches minimum and 0.9100 inches maximum
Bore Center To Shank End Distance: 1.8650 inches minimum and 1.8850 inches maximum
Outer Member Width: 0.3220 inches minimum and 0.3320 inches maximum
Inner Member Width: 0.4350 inches minimum and 0.4370 inches maximum
Shank Thread Length: 1.1560 inches minimum and 1.2180 inches maximum
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 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-81935/1a 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
EMRL7-94RGKX	Rod End Plain Bearing
M81935/1-05KL	Rod End Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-180-0540?

The FSCG of the NSN 3120-01-180-0540 is 3120

Does the NSN 3120-01-180-0540 have a Schedule B code assigned?

Yes, the Schedule B code is 8483308055

Does NSN 3120-01-180-0540 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 3120-01-180-0540 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-180-0540 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 3120-01-180-0540 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Thu, May 24, 1984