M81820/3-8

View detailed technical data, stock status, and sourcing information for: M81820/3-8
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-399-5057

Item Name Code

13208

Assigment Date

11/28/1994 (31 years ago)

A comparatively flat rigid item, with or without a centrally located aperture, designed to hold an annular bearing or a sleeve bearing in a fitted inclosure. It must have drilled and/or tapped holes for mounting purposes. Excludes:end bell, electrical rotating equipment.

0.5000 inches minimum and 0.5100 inches maximum outer member width, 0.5000 inches minimum and 0.5010 inches maximum bore diameter, 0.6230 inches minimum and 0.6250 inches maximum inner member width, 0.9995 inches minimum and 1.0000 inches maximum outer member outside diameter, with insert and/or liner with staking groove style designator

Product Characteristics

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

Bore Diameter: 0.5000 inches minimum and 0.5010 inches maximum
Outer Member Outside Diameter: 0.9995 inches minimum and 1.0000 inches maximum
Outer Member Width: 0.5000 inches minimum and 0.5100 inches maximum
Inner Member Width: 0.6230 inches minimum and 0.6250 inches maximum
Style Designator: with insert and/or liner with staking groove

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
AS81820/3	Self-Aligning Plain Bearing
AS81820/3-8	Self-Aligning Plain Bearing
M81820/3-8	Self-Aligning Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-399-5057?

The FSCG of the NSN 3120-01-399-5057 is 3120

Does the NSN 3120-01-399-5057 have a Schedule B code assigned?

Yes, the Schedule B code is 8482300040

Does NSN 3120-01-399-5057 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 3120-01-399-5057 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-399-5057 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 3120-01-399-5057 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Mon, Nov 28, 1994