ST4M166-3-0075

View detailed technical data, stock status, and sourcing information for: ST4M166-3-0075
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-255-5044

Item Name Code

13206

Assigment Date

05/21/1987 (39 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).

0.0780 inches minimum and 0.0830 inches maximum first hole diameter, 0.3735 inches minimum and 0.3740 inches maximum body outside diameter, 0.1900 inches minimum and 0.1910 inches maximum body inside diameter, 0.4730 inches minimum and 0.4780 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.

Hole Diameter: 0.0780 inches minimum and 0.0830 inches maximum first
Overall Length: 0.4730 inches minimum and 0.4780 inches maximum
Body Outside Diameter: 0.3735 inches minimum and 0.3740 inches maximum
Body Inside Diameter: 0.1900 inches minimum and 0.1910 inches maximum
Corner Shape: square all corners
Surface Finish: 32.0 microinches outside diameter surface of body
Antirotation/Lubrication Type And Quantity: 1 hole
Material: steel comp 630 overall
Material Document And Classification: ams5643 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Style Designator: solid, plain, no outside flanges
Specification/Standard Data: 70265-st4-166 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
12555044-04105	Sleeve Bushing
ST4M166-3-0075	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-01-255-5044?

The FSCG of the NSN 3120-01-255-5044 is 3120

Does the NSN 3120-01-255-5044 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-01-255-5044 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 3120-01-255-5044 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-255-5044 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 3120-01-255-5044 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Thu, May 21, 1987