20278

View detailed technical data, stock status, and sourcing information for: 20278
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-127-7970

Item Name Code

32528

Assigment Date

03/08/1982 (44 years ago)

5.875 inches nominal overall length, relief valve type 1791,1.000 in. end item identification, relief valve type for which designed, 0.375 inches nominal largest outside diameter, 1.000 inches valve size for which designed

Product Characteristics

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

Overall Length: 5.875 inches nominal
End Item Identification: relief valve type 1791,1.000 in.
Largest Outside Diameter: 0.375 inches nominal
Valve Type For Which Designed: relief
Valve Size For Which Designed: 1.000 inches
Stem Actuating End Type: rounded
Valve Model Number For Which Designed: 1791
Material: copper alloy
Material Document And Classification: qq-b-637 fed spec single material response

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
20278	Fluid Valve Stem
20278 FIND 7	Fluid Valve Stem
A12721.001.132	Fluid Valve Stem

FAQs

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

What is the FSCG of the NSN 4820-01-127-7970?

The FSCG of the NSN 4820-01-127-7970 is 4820

Does the NSN 4820-01-127-7970 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-127-7970 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 4820-01-127-7970 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-127-7970 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 4820-01-127-7970 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Mon, Mar 8, 1982