A51B21815-23

View detailed technical data, stock status, and sourcing information for: A51B21815-23
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-015-2325

Item Name Code

13206

Assigment Date

01/16/1976 (50 years ago)

A valve with one inlet and one outlet connection with outlet flow parallel to inlet flow. The flow is controlled by the action of a stem which lifts the disk perpendicularly off the center axis of its seat. The stem is at a 90 degree (1.5708 radians) angle to axis of flow. Excludes:valve, stop-check; cock, shutoff, screw stem; and valve, solenoid.

1.6750 inches nominal overall length, square outside left corner corner shape, 0.4970 inches minimum and 0.4980 inches maximum body outside diameter, 0.2500 inches minimum and 0.2520 inches maximum body inside diameter, chamfered inside left corner corner shape

Product Characteristics

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

Overall Length: 1.6750 inches nominal
Body Outside Diameter: 0.4970 inches minimum and 0.4980 inches maximum
Body Inside Diameter: 0.2500 inches minimum and 0.2520 inches maximum
Corner Shape: chamfered inside left corner
Corner Shape: square outside left corner
Corner Shape: square inside right corner
Corner Shape: square outside right corner
Surface Finish: 125.0 microinches intermediate layer
Material: steel comp 4340 overall
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
A51B21815-23	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-01-015-2325?

The FSCG of the NSN 3120-01-015-2325 is 3120

Does the NSN 3120-01-015-2325 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-01-015-2325 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 3120-01-015-2325 contain precious materials?

Precious metal content is unknown

Does NSN 3120-01-015-2325 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 3120-01-015-2325 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Fri, Jan 16, 1976