MS21783-12A254

View detailed technical data, stock status, and sourcing information for: MS21783-12A254
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-338-7424

Item Name Code

13211

Assigment Date

05/10/1991 (35 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

0.7650 inches nominal diameter, 0.1250 inches nominal overall thickness, 1.5520 inches minimum and 1.5720 inches maximum outside diameter, round center hole shape style, rectangular cross-sectional shape style

Product Characteristics

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

Cross-Sectional Shape Style: rectangular
Outside Diameter: 1.5520 inches minimum and 1.5720 inches maximum
Center Hole Shape Style: round
Diameter: 0.7650 inches nominal
Overall Thickness: 0.1250 inches nominal
Corner Shape: square all corners
Surface Finish: 32.0 microinches left side
Surface Finish: 32.0 microinches right side
Material: copper alloy 841 overall
Material: oil lubricating lubrication
Material Document And Classification: mil-b-5687,ty 1,gr 1 mil spec single material response overall
Style Designator: round

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
MS21783-12A254	Thrust Washer Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-338-7424?

The FSCG of the NSN 3120-01-338-7424 is 3120

Does the NSN 3120-01-338-7424 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105008

Does NSN 3120-01-338-7424 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 3120-01-338-7424 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-338-7424 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 3120-01-338-7424 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Fri, May 10, 1991