284-0073-001

View detailed technical data, stock status, and sourcing information for: 284-0073-001
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-958-7194

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

3a all ends thread class, poppet flow control device, right-hand all ends thread direction, integral bonnet attachment method, inside screw bonnet type

Product Characteristics

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

Thread Class: 3a all ends
Thread Direction: right-hand all ends
Flow Control Device: poppet
Bonnet Type: inside screw
Bonnet Attachment Method: integral
Disk Loading Method: spring
Valve Discharge Flow Rate: 4.5 cubic feet per minute
Maximum Operating Temp: 250.0 fahrenheit 2nd response
Maximum Operating Temp: 280.0 fahrenheit 1st response
Connection Style: external seat for gasket seal (boss) all ends
Valve Operation Method: automatic
Connection Type: threaded external boss all ends
Features Provided: valve stem lock shield
Maximum Operating Pressure: 3.5 pounds per square inch single response
Nominal Thread Size: 0.875 inches all ends
Opening Pressure Setting: 3.5 pounds per square inch
Material: aluminum alloy overall
Media For Which Designed: air 1st response
Media For Which Designed: nitrogen, gaseous 2nd response
Surface Treatment: anodize
Style Designator: straight thru
Thread Series Designator: unef all ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-832-6961	No Name Available	06/22/1974
4820-00-888-6087	No Name Available	12/29/1969
4820-00-963-7685	No Name Available	12/22/1969
4820-01-024-8549	No Name Available	03/01/1980

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
284-0073-001	Safety Relief Valve
334888	Safety Relief Valve
ZSP6-622-2	Safety Relief Valve
ZSP6-622P3-5	Safety Relief Valve
ZSP622-2	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-958-7194?

The FSCG of the NSN 4820-00-958-7194 is 4820

Does the NSN 4820-00-958-7194 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-958-7194 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 4820-00-958-7194 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-958-7194 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 4820-00-958-7194 was assigned to the Federal Catalog?

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