SM-4

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

Summary

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

Part Number
SM-4
Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-01-168-0912
Item Name Code
13209
Federal Item Identification Guide
A045A0
Assigment Date
12/12/1983

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.

groove inside diameter surface of race insert lubrication feature, 0.3700 inches minimum and 0.3750 inches maximum inner member width, 1.9370 inches nominal overall length, 1.5470 inches minimum and 1.5770 inches maximum bore center to shank end distance, 0.2495 inches minimum and 0.2515 inches maximum bore diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-168-0912 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter
0.2495 inches minimum and 0.2515 inches maximum
Bore Center To Shank End Distance
1.5470 inches minimum and 1.5770 inches maximum
Inner Member Width
0.3700 inches minimum and 0.3750 inches maximum
Lubrication Feature
groove inside diameter surface of race insert
Overall Length
1.9370 inches nominal
Material
steel corrosion resisting race insert
Material
steel inner member
Material
steel rod end body
Outer Member Outside Diameter
0.7400 inches minimum and 0.7600 inches maximum
Outer Member Width
0.2760 inches minimum and 0.2860 inches maximum
Shank Style
externally threaded
Shank Thread Length
0.9690 inches minimum and 1.0620 inches maximum
Special Features
lubrication hole in race insert
Static Radial Load Rating
2158 pounds
Style Designator
ball type
Surface Treatment
chromium inner member
Surface Treatment
nickel rod end body
Thread Class
3a
Thread Diameter
0.250 inches nominal
Thread Direction
right-hand
Thread Quantity Per Inch
28
Thread Series Designator
unf

Frequently Asked Questions

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

What is the FSCG of the NSN 3120-01-168-0912?
The FSCG of the NSN 3120-01-168-0912 is 3120
Does the NSN 3120-01-168-0912 have a Schedule B code assigned?
Yes, the Schedule B code is 8483308055
Does NSN 3120-01-168-0912 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 3120-01-168-0912 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-01-168-0912 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 3120-01-168-0912 was assigned to the Federal Catalog?
It was assigned 41 years ago, on Mon, Dec 12, 1983

Price & Availability

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