KSC143472V

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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-127-1587

Item Name Code

13208

Assigment Date

02/24/1982 (44 years ago)

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes:straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

4.7490 inches minimum and 4.7500 inches maximum bore diameter, 3.7400 inches minimum and 3.7500 inches maximum outer member width, 4.2450 inches minimum and 4.2500 inches maximum inner member width, 7.7490 inches minimum and 7.7500 inches maximum outer member outside diameter, 1580000 pounds static radial load rating

Product Characteristics

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

Bore Diameter: 4.7490 inches minimum and 4.7500 inches maximum
Outer Member Outside Diameter: 7.7490 inches minimum and 7.7500 inches maximum
Outer Member Width: 3.7400 inches minimum and 3.7500 inches maximum
Inner Member Width: 4.2450 inches minimum and 4.2500 inches maximum
Static Radial Load Rating: 1580000 pounds
Special Features: keyway in bore

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
KSC143472V	Self-Aligning Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-127-1587?

The FSCG of the NSN 3120-01-127-1587 is 3120

Does the NSN 3120-01-127-1587 have a Schedule B code assigned?

Yes, the Schedule B code is 8482300040

Does NSN 3120-01-127-1587 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 3120-01-127-1587 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-127-1587 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 3120-01-127-1587 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Wed, Feb 24, 1982