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4820-01-431-9202

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-431-9202
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
05488
(FIIG) Federal Item Identification Guide
A046B0
Date
05/21/1996 (30 years ago)

right-hand all ends thread direction, plain (pipe) all ends connection style, -20.0 fahrenheit minimum operating temp, 400.0 fahrenheit single response maximum operating temp, mark 6 transportable recompression chamber system,diver life support system end item identification

Specs & Compatibility

Thread Direction

right-hand all ends

Maximum Operating Temp

400.0 fahrenheit single response

Minimum Operating Temp

-20.0 fahrenheit

End Item Identification

mark 6 transportable recompression chamber system,diver life support system

Connection Style

plain (pipe) all ends

Valve Operation Method

automatic or manual

Connection Type

threaded external pipe all ends

Nominal Thread Size

0.375 inches all ends

Opening Pressure Setting

300.0 pounds per square inch

Special Features

viton o-rings;includes lockwire;asme series valve

Material

copper alloy body

Media For Which Designed

acetylene 2nd response

Media For Which Designed

air 1st response

Media For Which Designed

ammonia, gaseous 4th response

Media For Which Designed

gas, inert 5th response

Media For Which Designed

refrigerant 12 3rd response

Style Designator

angle

Thread Series Designator

npt all ends

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0005488

Related Hardware Products

Part Number Description
M5132N-3M(L)-30 Safety Relief Valve
M5132N-3M(L)-300 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-431-9202?
The FSCG of the NSN 4820-01-431-9202 is 4820
Does the NSN 4820-01-431-9202 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-431-9202 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 4820-01-431-9202 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-431-9202 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 4820-01-431-9202 was assigned to the Federal Catalog?
It was assigned 30 years ago, on Tue, May 21, 1996