1JA9251-1

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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-661-3954

Item Name Code

13205

Assigment Date

01/01/1963 (63 years ago)

1.3765 inches minimum and 1.3775 inches maximum body outside diameter, 1.4900 inches minimum and 1.5100 inches maximum overall length, 1.1150 inches minimum and 1.1350 inches maximum body inside diameter, 0.1100 inches minimum and 0.1200 inches maximum flange width, 1.5525 inches minimum and 1.5725 inches maximum flange outside 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: 1.4900 inches minimum and 1.5100 inches maximum
Body Outside Diameter: 1.3765 inches minimum and 1.3775 inches maximum
Body Inside Diameter: 1.1150 inches minimum and 1.1350 inches maximum
Flange Outside Diameter: 1.5525 inches minimum and 1.5725 inches maximum
Flange Width: 0.1100 inches minimum and 0.1200 inches maximum
Lubricant Accommodation Style: grooved open one end
Corner Shape: chamfered inside left corner
Corner Shape: square left flange body corner
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside right corner
Corner Shape: square outside right corner
Surface Finish: 125.0 microinches outside diameter surface of flange
Surface Finish: 125.0 microinches right end surface of body
Surface Finish: 125.0 microinches right end surface of left flange
Surface Finish: 63.0 microinches inside diameter surface of body
Surface Finish: 63.0 microinches outside diameter surface of body
Surface Groove Location And Quantity: 1 external and 1 internal
Material: copper alloy 934 overall
Material Document And Classification: mil-b-16261,cl 2 mil spec single material 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
1-JA-9251	Sleeve Bearing
1JA9251-1	Sleeve Bearing
1JB9251-1	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-661-3954?

The FSCG of the NSN 3120-00-661-3954 is 3120

Does the NSN 3120-00-661-3954 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-661-3954 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 3120-00-661-3954 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-661-3954 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 3120-00-661-3954 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963