4820-01-151-3691

Find complete technical information, availability, and procurement data for: 4820-01-151-3691
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-151-3691

Item Name Code

05488

Assigment Date

04/16/1983 (43 years ago)

A valve designed to relieve internal pressure from gear housings, automotive axles, differentials, transmissions and the like. May or may not be threaded on one end. For items with relief pressure ratings see valve (1), safety relief.

-65.0 fahrenheit 1st response300.0 fahrenheit 2nd response maximum operating temp, plain (pipe) 1st end connection style, poppet flow control device, right-hand 2nd end thread direction, right-hand 1st end 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 Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Maximum Operating Temp: -65.0 fahrenheit 1st response300.0 fahrenheit 2nd 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: 200.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 1st end
Nominal Thread Size: 0.250 inches 2nd end
Opening Pressure Setting: 5.0 pounds per square inch
Special Features: inline type
Material: copper alloy body
Media For Which Designed: air 1st response
Media For Which Designed: steam 2nd response
Style Designator: straight thru note: to be used for valve bodies of one section only.
Thread Series Designator: npt 2nd end
Thread Series Designator: npt 1st end

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
11449124	Safety Relief Valve
562B-2MP-5	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-151-3691?

The FSCG of the NSN 4820-01-151-3691 is 4820

Does the NSN 4820-01-151-3691 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-151-3691 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 4820-01-151-3691 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-151-3691 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 4820-01-151-3691 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Sat, Apr 16, 1983