N3000-4ALT1PC21B

View detailed technical data, stock status, and sourcing information for: N3000-4ALT1PC21B
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-339-3440

Item Name Code

13205

Assigment Date

01/01/1961 (65 years ago)

A transparent or translucent item that encloses or is placed in front of a light source. Sections may be opaque and may include a holder. Serves as either a replacement unit for a specific type of light, such as light,traffic,vehicular; light,indicator; light,navigational,marine; stop light,vehicular; and lantern,electric; or that portion of a switch (as modified) used as an actuator and having provisions for illumination. See also window,lighting fixture; globe; electric light; and filter (as modified). __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

1.8150 inches minimum and 1.8160 inches maximum body outside diameter, 0.3750 inches nominal first hole diameter, 2.5000 inches nominal overall length, 1.6250 inches minimum and 1.6260 inches maximum body inside diameter, grooved open both ends 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.

Hole Diameter: 0.3750 inches nominal first
Overall Length: 2.5000 inches nominal
Body Outside Diameter: 1.8150 inches minimum and 1.8160 inches maximum
Body Inside Diameter: 1.6250 inches minimum and 1.6260 inches maximum
Lubricant Accommodation Style: grooved open both ends
Corner Shape: chamfered outside left corner
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Corner Shape: square outside right corner
Surface Finish: 125.0 microinches left end surface of body
Surface Finish: 125.0 microinches right end surface of body
Surface Finish: 32.0 microinches outside diameter surface of body
Antirotation/Lubrication Type And Quantity: 1 hole
Surface Groove Location And Quantity: 1 internal
Material: steel comp 1010 outer layer
Material: tin alloy uns l13910 inner layer
Style Designator: solid, plain, no outside flanges

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
52127S5901-998608ALT1PC21B	Sleeve Bearing
52128S5901-998623ALT1PC21B	Sleeve Bearing
52129S5901-998639ALT1PC21B	Sleeve Bearing
5F40-1022	Sleeve Bearing
N2346-1ALT1PC21B	Sleeve Bearing
N3000-4ALT1PC21B	Sleeve Bearing
N4600-3ALT1PC21B	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-339-3440?

The FSCG of the NSN 3120-00-339-3440 is 3120

Does the NSN 3120-00-339-3440 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-339-3440 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 3120-00-339-3440 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-339-3440 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 3120-00-339-3440 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961