NHB4 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: NHB4 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: NHB4. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: NHB4
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-117-0032
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 08/07/1981

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 item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes:bearing, plain, rod end and bearing, plain, spherical.

23.0 rockwell c minimum and 35.0 rockwell c maximum outer race member hardness rating, 0.2495 inches minimum and 0.2500 inches maximum bore diameter, 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member hardness rating, used to 325.0 deg f max functional description, 0.3730 inches minimum and 0.3750 inches maximum inner member width

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-117-0032 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.2495 inches minimum and 0.2500 inches maximum
Functional Description: used to 325.0 deg f max
Hardness Rating: 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member
Hardness Rating: 23.0 rockwell c minimum and 35.0 rockwell c maximum outer race member
Inner Member Width: 0.3730 inches minimum and 0.3750 inches maximum
Lubrication Feature: self-lubricating liner bore liner
Material Document And Classification: ams5630,uns s44004 assn std single material response inner member
Material Document And Classification: ams5643,uns s17400 assn std 1st material response or ams5528,uns s17700 assn std 2nd material response or aisi/sae j405,uns s41000 assn std 3rd material response outer race member
Material: plastic polytetrafluoroethylene race liner
Material: steel comp 440c inner member
Material: steel comp 630 or steel comp 631 or steel comp 410 outer race member
Outer Member Outside Diameter: 0.6557 inches minimum and 0.6562 inches maximum
Outer Member Width: 0.2450 inches minimum and 0.2550 inches maximum
Relationship To Similar Equipment: similar to nsn 3120-00-332-4401 mfr std r/n 76301-st4m137-4
Specification/Standard Data: 96906-ms21233 government standard
Static Radial Load Rating: 6040 pounds
Style Designator: with insert and/or liner

Frequently Asked Questions

Find quick answers to common questions about bearing: NHB4. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-117-0032?: The FSCG of the NSN 3120-01-117-0032 is 3120

Does the NSN 3120-01-117-0032 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-01-117-0032 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 3120-01-117-0032 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-01-117-0032 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.