FFM4H Rod End Plain Bearing

Comprehensive specifications and application details for: FFM4H Rod End Plain Bearing.

Summary

Explore detailed summary information for bearing: FFM4H. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: FFM4H
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-998-5055
Item Name Code: 13209
Federal Item Identification Guide: A045A0
Assigment Date: 12/04/1967

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.

55.0 rockwell c minimum inner member hardness rating, 1.5520 inches minimum and 1.5720 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 0.2500 inches maximum bore diameter, 32.0 rockwell c minimum rod end body hardness rating

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-998-5055 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.2495 inches minimum and 0.2500 inches maximum
Bore Center To Shank End Distance: 1.5520 inches minimum and 1.5720 inches maximum
Hardness Rating: 32.0 rockwell c minimum rod end body
Hardness Rating: 55.0 rockwell c minimum inner member
Inner Member Width: 0.3700 inches minimum and 0.3750 inches maximum
Overall Length: 1.9520 inches nominal
Material: plastic polytetrafluoroethylene race liner
Material: steel comp 440c inner member
Material: steel comp 630 rod end body
Material: steel corrosion resisting race insert
Outer Member Outside Diameter: 0.7710 inches minimum and 0.8160 inches maximum
Outer Member Width: 0.2760 inches minimum and 0.2860 inches maximum
Shank Style: externally threaded
Shank Thread Length: 1.0000 inches nominal
Static Radial Load Rating: 4270 pounds
Special Features: race type construction optional,requires magnetic or penetrant inspection as applicable,nas 559 keyway in shank
Style Designator: ball type
Surface Treatment: cadmium rod end body
Thread Class: 3a
Thread Diameter: 0.312 inches nominal
Thread Direction: right-hand
Thread Quantity Per Inch: 24
Thread Series Designator: unf

Replaces

The NSN 3120-00-998-5055 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-127-8908	No Name Available	08/01/2007

Frequently Asked Questions

Find quick answers to common questions about bearing: FFM4H. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-998-5055?: The FSCG of the NSN 3120-00-998-5055 is 3120

Does the NSN 3120-00-998-5055 have a Schedule B code assigned?: Yes, the Schedule B code is 8483308055

Does NSN 3120-00-998-5055 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 3120-00-998-5055 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-998-5055 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.