4820-00-988-9878

Find complete technical information, availability, and procurement data for: 4820-00-988-9878
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-988-9878

Item Name Code

05488

Assigment Date

01/01/1962 (64 years ago)

disk flow control device, 3a 1st end thread class, 3b 2nd end thread class, spring disk loading method, right-hand all ends thread direction

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 1st end
Thread Class: 3b 2nd end
Thread Direction: right-hand all ends
Flow Control Device: disk
Disk Loading Method: spring
Maximum Operating Temp: 275.0 fahrenheit single response
Connection Style: flared (tube) 1st end
Connection Style: inverted flare(tube) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Connection Type: threaded internal tube 2nd end
Features Provided: pressure tight outlet side
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Thread Size: 0.562 inches all ends
Seat Angle: 30.0 degrees 2nd end
Seat Angle: 37.0 degrees 1st end
Opening Pressure Setting: 75.0 pounds per square inch
Nominal Outside Diameter Tube Accommodated: 0.375 inches 2nd end
Material: aluminum alloy body
Material: steel corrosion resisting flow control device
Material: steel corrosion resisting seat
Style Designator: straight thru note: to be used for valve bodies of one section only.
Thread Series Designator: unf 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
P151	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-988-9878?

The FSCG of the NSN 4820-00-988-9878 is 4820

Does the NSN 4820-00-988-9878 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-988-9878 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 4820-00-988-9878 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-988-9878 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 4820-00-988-9878 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962