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4820-01-208-4255

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-208-4255
(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
05/14/1985 (41 years ago)

automatic valve operation method, socket with brazing ring all ends connection style, 150.0 fahrenheit single response maximum operating temp, disk flow control device, 0.500 inches all ends nominal pipe size accommodated

Specs & Compatibility

Nominal Pipe Size Accommodated

0.500 inches all ends

Flow Control Device

disk

Maximum Operating Temp

150.0 fahrenheit single response

Connection Style

socket with brazing ring all ends

Valve Operation Method

automatic

Connection Type

unthreaded internal pipe all ends

Adjustable Pressure Range

+121.0 to 135.0 pounds per square inch

Maximum Operating Pressure

3000.0 pounds per square inch single response

Material

copper alloy body

Material

copper alloy stem

Material

nickel alloy flow control device

Material

nickel alloy seat

Media For Which Designed

air 1st response

Media For Which Designed

water, fresh 2nd response

Style Designator

angle

Replacement For

Part Number Description
4820-01-152-3035 No Name Available 03/01/1998

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
8526 Safety Relief Valve
E8526P41M Safety Relief Valve
E8632P41M Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-208-4255?
The FSCG of the NSN 4820-01-208-4255 is 4820
Does the NSN 4820-01-208-4255 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-208-4255 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 4820-01-208-4255 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-208-4255 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 4820-01-208-4255 was assigned to the Federal Catalog?
It was assigned 41 years ago, on Tue, May 14, 1985