3120-01-305-2658

Find complete technical information, availability, and procurement data for: 3120-01-305-2658
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-305-2658

Item Name Code

13206

Assigment Date

08/03/1989 (37 years ago)

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

0.4900 inches minimum and 0.5100 inches maximum flange outside diameter, 0.0550 inches minimum and 0.0600 inches maximum flange width, 0.2380 inches minimum and 0.2430 inches maximum body inside diameter, 0.3756 inches minimum and 0.3761 inches maximum body outside diameter, 2.0000 inches nominal 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: 2.0000 inches nominal
Body Outside Diameter: 0.3756 inches minimum and 0.3761 inches maximum
Body Inside Diameter: 0.2380 inches minimum and 0.2430 inches maximum
Flange Outside Diameter: 0.4900 inches minimum and 0.5100 inches maximum
Flange Width: 0.0550 inches minimum and 0.0600 inches maximum
Corner Shape: chamfered inside left corner
Corner Shape: chamfered inside right corner
Corner Shape: square outside left corner
Corner Shape: square outside right corner
Corner Shape: undercut left flange outside right corner
Corner Shape: undercut left flange body corner
Surface Finish: 63.0 microinches outside diameter surface of body
Material: copper alloy 630 or copper alloy 642 overall
Style Designator: solid, external flange one end
Specification/Standard Data: 80205-nas538 professional/industrial association standard

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
NAS538BH-200	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-01-305-2658?

The FSCG of the NSN 3120-01-305-2658 is 3120

Does the NSN 3120-01-305-2658 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-01-305-2658 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 3120-01-305-2658 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-305-2658 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 3120-01-305-2658 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Thu, Aug 3, 1989