NAS72-4-003

View detailed technical data, stock status, and sourcing information for: NAS72-4-003
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-728-0843

Item Name Code

13206

Assigment Date

02/21/1968 (58 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.

chamfered outside right corner corner shape, 0.1920 inches minimum and 0.1970 inches maximum overall length, 0.2490 inches minimum and 0.2500 inches maximum body inside diameter, 0.4345 inches minimum and 0.4355 inches maximum body outside diameter, grooved circular lubricant accommodation style

Product Characteristics

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

Overall Length: 0.1920 inches minimum and 0.1970 inches maximum
Body Outside Diameter: 0.4345 inches minimum and 0.4355 inches maximum
Body Inside Diameter: 0.2490 inches minimum and 0.2500 inches maximum
Lubricant Accommodation Style: grooved circular
Corner Shape: chamfered outside right corner
Corner Shape: chamfered outside left corner
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Surface Groove Location And Quantity: 1 external
Material: steel comp 4130 or steel comp 8630 overall
Material Document And Classification: mil-s-6758 mil spec 1st material response or mil-s-6050 mil spec 2nd material response overall
Surface Treatment: chromium left end surface of body
Surface Treatment: chromium outside diameter surface of body
Surface Treatment: chromium right end surface of body
Surface Treatment Document And Classification: qq-c-320,cl 2 fed spec single treatment response outside diameter surface of body
Surface Treatment Document And Classification: qq-c-320,cl 2 fed spec single treatment response right end surface of body
Surface Treatment Document And Classification: qq-c-320,cl 2 fed spec single treatment response left end surface of body
Style Designator: solid, plain, no outside flanges
Specification/Standard Data: 80205-nas72 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
NAS72-4-003	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-00-728-0843?

The FSCG of the NSN 3120-00-728-0843 is 3120

Does the NSN 3120-00-728-0843 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-00-728-0843 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 3120-00-728-0843 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-728-0843 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 3120-00-728-0843 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, Feb 21, 1968