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4820-00-903-8360

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-00-903-8360
(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
01/01/1960 (66 years ago)

packing retaining bonnet type, poppet flow control device, 3b 1st end thread class, spring disk loading method, right-hand 1st end thread direction

Specs & Compatibility

Thread Class

3b 1st end

Thread Direction

right-hand 1st end

Flow Control Device

poppet

Bonnet Type

packing retaining

Disk Loading Method

spring

Valve Discharge Flow Rate

6.0 gallons per minute

Maximum Operating Temp

280.0 fahrenheit single response

Connection Style

gasket seal(boss) 1st end

Valve Operation Method

automatic

Connection Type

threaded internal boss 1st end

Thread Quantity Per Inch

16 1st end

Maximum Operating Pressure

3000.0 pounds per square inch single response

Nominal Thread Size

0.750 inches 1st end

Opening Pressure Setting

2000.0 pounds per square inch

Nominal Outside Diameter Tube Accommodated

0.500 inches 1st end

Material

aluminum alloy body

Material

steel corrosion resisting flow control device

Material

steel corrosion resisting seat

Media For Which Designed

fuel/oil, hydrocarbon single response

Style Designator

straight thru

Thread Series Designator

unf 1st end

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
HE284-5004-0001 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-903-8360?
The FSCG of the NSN 4820-00-903-8360 is 4820
Does the NSN 4820-00-903-8360 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-903-8360 require demilitarization?
Usml items - mutilation to the point of scrap required worldwide. (note 7).
Does NSN 4820-00-903-8360 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-00-903-8360 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 4820-00-903-8360 was assigned to the Federal Catalog?
It was assigned 66 years ago, on Fri, Jan 1, 1960