4820-00-287-2978

Find complete technical information, availability, and procurement data for: 4820-00-287-2978
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-287-2978

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

0.750 inches 1st end nominal pipe size accommodated, exposed spring bonnet type, union bonnet attachment method, spring disk loading method, poppet flow control device

Product Characteristics

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

Nominal Pipe Size Accommodated: 0.750 inches 1st end
Flow Control Device: poppet
Bonnet Type: exposed spring
Bonnet Attachment Method: union
Disk Loading Method: spring
Connection Style: streamlined with one brazing ring 1st end
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe 1st end
Valve Size: 0.750 inches
Adjustable Pressure Range: +136.0 to 169.0 pounds per square inch
Maximum Operating Pressure: 400.0 pounds per square inch single response
Material: copper alloy body
Material: copper alloy and nickel alloy flow control device
Material: nickel alloy seat
Material: nickel alloy stem
Media For Which Designed: air single response
Style Designator: angle flanged ends
Nondefinitive Spec/Std Data: a1 type and c class

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
TYA1CLC3-4 400-298T0354SBU	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-2978?

The FSCG of the NSN 4820-00-287-2978 is 4820

Does the NSN 4820-00-287-2978 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-287-2978 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 4820-00-287-2978 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-287-2978 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 4820-00-287-2978 was assigned to the Federal Catalog?

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