4820-01-331-0537

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Safety Relief Valve

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Official Item Classification

Name: Safety Relief Valve
(NSN) National Stock Number: 4820-01-331-0537
(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: 12/13/1990 (35 years ago)

automatic valve operation method, spring disk loading method, disk flow control device, 4610-01-231-3082 end item identification, +35.0 to 40.0 pounds per square inch adjustable pressure range

Specs & Compatibility

Flow Control Device

disk

Disk Loading Method

spring

End Item Identification

4610-01-231-3082

Valve Operation Method

automatic

Adjustable Pressure Range

+35.0 to 40.0 pounds per square inch

Media For Which Designed

water, fresh single response

Regulatory Compliance

Precious Metals Indicator

Item does not contain precious metal.

Criticality Code

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

Hazardous Metals Indicator

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
3046 NO. 351	Safety Relief Valve
673-5	Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-331-0537?

The FSCG of the NSN 4820-01-331-0537 is 4820

Does the NSN 4820-01-331-0537 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-331-0537 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 4820-01-331-0537 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-331-0537 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 4820-01-331-0537 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Thu, Dec 13, 1990