439B656PC17

View detailed technical data, stock status, and sourcing information for: 439B656PC17
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-974-1579

Item Name Code

13205

Assigment Date

01/01/1962 (64 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.

square all corners corner shape, copper alloy and plastic polytetrafluoroethylene intermediate layer material, 1.2500 inches nominal body inside diameter, 1.4062 inches nominal body outside diameter, 0.9900 inches minimum and 1.0100 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: 0.9900 inches minimum and 1.0100 inches maximum
Body Outside Diameter: 1.4062 inches nominal
Body Inside Diameter: 1.2500 inches nominal
Corner Shape: square all corners
Material: copper alloy and plastic polytetrafluoroethylene intermediate layer
Material: plastic polytetrafluoroethylene and lead inner layer
Material: steel outer layer
Surface Treatment: tin outside diameter surface of body
Surface Treatment Document And Classification: du 78912 mfr ref single treatment response outside diameter surface of body
Style Designator: split, plain, no outside flanges

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
0801037	Sleeve Bearing
0808042	Sleeve Bearing
122-1096415 PIECE 38	Sleeve Bearing
122-2422386 PIECE 207	Sleeve Bearing
122-2422387 PC	Sleeve Bearing
122-2422395 PIECE 207	Sleeve Bearing
122-2422417 PC 207	Sleeve Bearing
20DU16	Sleeve Bearing
439B656-17	Sleeve Bearing
439B656PC17	Sleeve Bearing
701-2298824 PIECE 207	Sleeve Bearing
75201A40	Sleeve Bearing
B8005-08-001FN37	Sleeve Bearing
B8005-08-008FN42	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-974-1579?

The FSCG of the NSN 3120-00-974-1579 is 3120

Does the NSN 3120-00-974-1579 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-974-1579 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 3120-00-974-1579 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-974-1579 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 3120-00-974-1579 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962