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4820-01-424-9874

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-424-9874
(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
02/08/1996 (30 years ago)

120.0 fahrenheit single response maximum operating temp, plain (pipe) 1st end connection style, -361.0 fahrenheit minimum operating temp, right-hand all ends thread direction, plain,optional end(pipe) 2nd end connection style

Specs & Compatibility

Thread Direction

right-hand all ends

Maximum Operating Temp

120.0 fahrenheit single response

Minimum Operating Temp

-361.0 fahrenheit

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

1.000 inches all ends

Material

steel corrosion resisting body

Media For Which Designed

nitrogen, liquid 1st response

Media For Which Designed

oxygen, liquid 2nd 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

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Frequently Asked Questions

What is the FSCG of the NSN 4820-01-424-9874?
The FSCG of the NSN 4820-01-424-9874 is 4820
Does the NSN 4820-01-424-9874 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-424-9874 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 4820-01-424-9874 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-424-9874 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 4820-01-424-9874 was assigned to the Federal Catalog?
It was assigned 30 years ago, on Thu, Feb 8, 1996