9033884

View detailed technical data, stock status, and sourcing information for: 9033884
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-620-8123

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

0.250 inches all ends nominal pipe size accommodated, right-hand all ends thread direction, plain (pipe) all ends connection style, 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: 0.250 inches all ends
Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe all ends
Thread Quantity Per Inch: 18 all ends
Adjustable Pressure Range: +7.0 to 10.0 pounds per square inch
Nominal Thread Size: 0.250 inches all ends
Special Features: pressure tight outlet side
Material: copper alloy body
Material: copper alloy seat
Style Designator: straight thru
Thread Series Designator: npt all ends
Reference Number Differentiating Characteristics: pressure tight outlet side as differentiated by free from mercury contaminat

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-304-9415	No Name Available	06/24/1970

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
4820006208123	Safety Relief Valve
8376456	Safety Relief Valve
9033884	Safety Relief Valve
B2858	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-620-8123?

The FSCG of the NSN 4820-00-620-8123 is 4820

Does the NSN 4820-00-620-8123 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-620-8123 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 4820-00-620-8123 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-620-8123 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 4820-00-620-8123 was assigned to the Federal Catalog?

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