728991-103

View detailed technical data, stock status, and sourcing information for: 728991-103
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-301-3005

Item Name Code

13206

Assigment Date

10/17/1973 (52 years ago)

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.

0.5617 inches minimum and 0.5623 inches maximum body outside diameter, 0.6390 inches minimum and 0.6490 inches maximum flange outside diameter, 0.4375 inches minimum and 0.4383 inches maximum body inside diameter, 0.0600 inches minimum and 0.0640 inches maximum flange width, 0.1700 inches minimum and 0.1840 inches maximum overall length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Length: 0.1700 inches minimum and 0.1840 inches maximum
Body Outside Diameter: 0.5617 inches minimum and 0.5623 inches maximum
Body Inside Diameter: 0.4375 inches minimum and 0.4383 inches maximum
Flange Outside Diameter: 0.6390 inches minimum and 0.6490 inches maximum
Flange Width: 0.0600 inches minimum and 0.0640 inches maximum
Corner Shape: chamfered inside left corner
Corner Shape: square left flange body corner
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside right corner
Corner Shape: square outside right corner
Surface Finish: 125.0 microinches intermediate layer
Material: iron alloy 660 overall
Surface Treatment: cadmium overall
Style Designator: solid, external flange one end

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
728991-103	Sleeve Bushing

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 3120-00-301-3005?

The FSCG of the NSN 3120-00-301-3005 is 3120

Does the NSN 3120-00-301-3005 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-00-301-3005 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 3120-00-301-3005 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-301-3005 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 3120-00-301-3005 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Wed, Oct 17, 1973