4E-138

Comprehensive specifications and application details for: 4E-138 Rod End Plain Bearing.

Summary

Explore detailed summary information for bearing: 4E-138. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
4E-138
Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-01-036-7428
Item Name Code
13209
Federal Item Identification Guide
A045A0
Assigment Date
03/05/1977

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.

28.0 rockwell c minimum and 36.0 rockwell c maximum race insert hardness rating, 26.0 rockwell c minimum and 43.0 rockwell c maximum rod end body hardness rating, 1.5520 inches minimum and 1.5720 inches maximum bore center to shank end distance, 0.2495 inches minimum and 0.2515 inches maximum bore diameter, 41.0 rockwell c minimum and 57.0 rockwell c maximum inner member hardness rating

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-036-7428 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter
0.2495 inches minimum and 0.2515 inches maximum
Bore Center To Shank End Distance
1.5520 inches minimum and 1.5720 inches maximum
Hardness Rating
41.0 rockwell c minimum and 57.0 rockwell c maximum inner member
Hardness Rating
26.0 rockwell c minimum and 43.0 rockwell c maximum rod end body
Hardness Rating
28.0 rockwell c minimum and 36.0 rockwell c maximum race insert
Inner Member Width
0.4320 inches minimum and 0.4370 inches maximum
Overall Length
1.9375 inches minimum and 1.9675 inches maximum
Material Document And Classification
bms 3-8, mcdonnell douglas corp, mcdonnell aircraft division mfr ref single material response lubrication
Material
lubricant dry film lubrication
Material
steel comp 303 or steel comp 347 race insert
Material
steel comp 4130 rod end body
Material
steel comp e52100 or steel comp 440c inner member
Outer Member Outside Diameter
0.7710 inches minimum and 0.7910 inches maximum
Outer Member Width
0.3320 inches minimum and 0.3420 inches maximum
Shank Style
externally threaded
Shank Thread Length
0.9690 inches minimum and 1.0620 inches maximum
Special Features
chrome plate finish on items furnished with inner race member of 52100 steel only
Static Radial Load Rating
2100 pounds
Style Designator
ball type
Surface Treatment
cadmium rod end body
Surface Treatment
chromium inner member
Thread Class
3a
Thread Diameter
0.312 inches nominal
Thread Direction
right-hand
Thread Quantity Per Inch
24
Thread Series Designator
unf

Frequently Asked Questions

Find quick answers to common questions about bearing: 4E-138. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-036-7428?
The FSCG of the NSN 3120-01-036-7428 is 3120
Does the NSN 3120-01-036-7428 have a Schedule B code assigned?
Yes, the Schedule B code is 8483308055
Does NSN 3120-01-036-7428 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 3120-01-036-7428 contain precious materials?
Precious metal content is unknown
Does NSN 3120-01-036-7428 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 3120-01-036-7428 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Sat, Mar 5, 1977

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