3120-01-299-4621

Find complete technical information, availability, and procurement data for: 3120-01-299-4621
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-299-4621

Item Name Code

13206

Assigment Date

05/01/1989 (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).

0.4360 inches minimum and 0.4370 inches maximum body outside diameter, 0.2505 inches minimum and 0.2520 inches maximum body inside diameter, 40.0 rockwell c minimum and 43.0 rockwell c maximum overall hardness rating, 3.2150 inches minimum and 3.2200 inches maximum overall length, square all corners corner shape

Product Characteristics

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

Overall Length: 3.2150 inches minimum and 3.2200 inches maximum
Body Outside Diameter: 0.4360 inches minimum and 0.4370 inches maximum
Body Inside Diameter: 0.2505 inches minimum and 0.2520 inches maximum
Corner Shape: square all corners
Hardness Rating: 40.0 rockwell c minimum and 43.0 rockwell c maximum overall
Surface Finish: 16.0 microinches outside diameter surface of body
Surface Finish: 32.0 microinches inside diameter surface of body
Material: steel comp 630 overall
Material Document And Classification: ams 5643 assn std single material response overall
Style Designator: solid, plain, no outside flanges
Specification/Standard Data: 81205-bacb28z4 manufacturers 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
BACB28Z4-322	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-01-299-4621?

The FSCG of the NSN 3120-01-299-4621 is 3120

Does the NSN 3120-01-299-4621 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-01-299-4621 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 3120-01-299-4621 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-299-4621 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 3120-01-299-4621 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Mon, May 1, 1989