4820-01-643-0276

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Safety Relief Valve

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Official Item Classification

Name: Safety Relief Valve
(NSN) National Stock Number: 4820-01-643-0276
(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: 03/17/2015 (11 years ago)

flow control,muffler part name assigned by controlling agency, reduce noise by 17-20 db,trap particles down to 40 micron special features, 300.0 pounds per square inch single response maximum operating pressure, 300.0 fahrenheit single response maximum operating temp, manual valve operation method

Specs & Compatibility

Maximum Operating Temp

300.0 fahrenheit single response

Valve Operation Method

manual

Maximum Operating Pressure

300.0 pounds per square inch single response

Part Name Assigned By Controlling Agency

flow control,muffler

Special Features

reduce noise by 17-20 db,trap particles down to 40 micron

Material

copper alloy body

Media For Which Designed

air 1st response

Media For Which Designed

gas, inert 2nd response

Style Designator

screw-in cartridge

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
9834K43	Safety Relief Valve
ASP-3SCH	Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-643-0276?

The FSCG of the NSN 4820-01-643-0276 is 4820

Does the NSN 4820-01-643-0276 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-643-0276 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 4820-01-643-0276 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-643-0276 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 4820-01-643-0276 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Tue, Mar 17, 2015