SM-4 Rod End Plain Bearing

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.

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

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

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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.