NAS538-4-56

View detailed technical data, stock status, and sourcing information for: NAS538-4-56
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-498-9704

Item Name Code

13206

Assigment Date

10/20/1969 (56 years ago)

0.4900 inches minimum and 0.5100 inches maximum flange outside diameter, 0.3756 inches minimum and 0.3761 inches maximum body outside diameter, 0.0550 inches minimum and 0.0600 inches maximum flange width, 0.6100 inches minimum and 0.6200 inches maximum overall length, 0.2380 inches minimum and 0.2430 inches maximum body inside diameter

Product Characteristics

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

Overall Length: 0.6100 inches minimum and 0.6200 inches maximum
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 left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square outside right corner
Corner Shape: undercut left flange body corner
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
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
NAS538-4-056	Sleeve Bushing
NAS538-4-56	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-00-498-9704?

The FSCG of the NSN 3120-00-498-9704 is 3120

Does the NSN 3120-00-498-9704 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-00-498-9704 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 3120-00-498-9704 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-498-9704 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 3120-00-498-9704 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Mon, Oct 20, 1969