3120-01-253-3178

Find complete technical information, availability, and procurement data for: 3120-01-253-3178
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-253-3178

Item Name Code

13206

Assigment Date

04/16/1987 (39 years ago)

A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.

0.3900 inches nominal overall length, 0.6250 inches nominal flange outside diameter, 0.3750 inches minimum and 0.3760 inches maximum body inside diameter, 0.4984 inches minimum and 0.4994 inches maximum body outside diameter, 0.0300 inches minimum and 0.0400 inches maximum flange width

Product Characteristics

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

Overall Length: 0.3900 inches nominal
Body Outside Diameter: 0.4984 inches minimum and 0.4994 inches maximum
Body Inside Diameter: 0.3750 inches minimum and 0.3760 inches maximum
Flange Outside Diameter: 0.6250 inches nominal
Flange Width: 0.0300 inches minimum and 0.0400 inches maximum
Corner Shape: square all corners
Hardness Rating: 43.0 rockwell c minimum and 48.0 rockwell c maximum overall
Surface Finish: 63.0 microinches inside diameter surface of body
Surface Finish: 63.0 microinches outside diameter surface of body
Material: steel comp xm-13 overall
Material Document And Classification: ams 5629 assn std single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 2 fed spec single treatment response overall
Style Designator: solid, external flange one end

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
123CSM60106-11	Sleeve Bushing
GR501AT4-11	Sleeve Bushing
R5572-4KE11	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-01-253-3178?

The FSCG of the NSN 3120-01-253-3178 is 3120

Does the NSN 3120-01-253-3178 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-01-253-3178 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 3120-01-253-3178 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-253-3178 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 3120-01-253-3178 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Thu, Apr 16, 1987