P151

View detailed technical data, stock status, and sourcing information for: P151
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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, right-hand all ends thread direction, 3a 1st end thread class, 3b 2nd end thread class, spring disk loading method

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