4820-01-327-9973

Find complete technical information, availability, and procurement data for: 4820-01-327-9973
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-327-9973

Item Name Code

05488

Assigment Date

10/25/1990 (35 years ago)

A rigid or flexible item of various shapes attached to a structure for the purpose of providing access for inspection, service, replacement of components and/or adjustments or mounting operations. It is designed to be attached by means of bolt holes, slots, mounting ears, tabs, and the like. To permit access, the mounted cover requires partial or complete removal. It may include an observation window. For items permanently attached by hinges and the like, see door, access (as modified). Excludes:all covers not specifically designed to provide access for the purposes listed above.

right-hand all ends thread direction, 550.0 fahrenheit single response maximum operating temp, disk flow control device, bolted 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 Direction: right-hand all ends
Flow Control Device: disk
Bonnet Type: inside screw
Bonnet Attachment Method: bolted
Maximum Operating Temp: 550.0 fahrenheit single response
Connection Style: plain (pipe) 1st end
Connection Style: plain,optional end(pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded internal pipe 2nd end
Maximum Operating Pressure: 10000.0 pounds per square inch single response
Nominal Thread Size: 0.500 inches all ends
Opening Pressure Setting: 100.0 pounds per square inch
Material: steel corrosion resisting body
Media For Which Designed: gas, inert 1st response
Media For Which Designed: liquid 2nd response
Style Designator: angle
Thread Series Designator: npt all ends

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
83MS44-4	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-327-9973?

The FSCG of the NSN 4820-01-327-9973 is 4820

Does the NSN 4820-01-327-9973 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-327-9973 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 4820-01-327-9973 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-327-9973 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 4820-01-327-9973 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Thu, Oct 25, 1990