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4820-01-672-5225

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-672-5225
(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
05/07/2018 (8 years ago)

spring disk loading method, 0.50 inches all ends nominal pipe size accommodated, union bonnet attachment method, disk flow control device, inside spring bonnet type

Specs & Compatibility

Nominal Pipe Size Accommodated

0.50 inches all ends

Flow Control Device

disk

Bonnet Type

inside spring

Bonnet Attachment Method

union

Disk Loading Method

spring

Maximum Operating Temp

200.00 fahrenheit 1st response

Maximum Operating Temp

425.00 fahrenheit 2nd response

Valve Operation Method

manual or automatic

Connection Type

unthreaded internal pipe all ends

Valve Size

0.50 inches

Adjustable Pressure Range

+45.00 to 75.00 pounds per square inch

Maximum Operating Pressure

200.00 pounds per square inch 2nd response

Maximum Operating Pressure

400.00 pounds per square inch 1st response

Part Name Assigned By Controlling Agency

valve, angle relief

Material

bronze body

Material

nickel alloy stem

Material Document And Classification

asmt b61 assn std single material response body

Material Document And Classification

qq-n-281 fed spec single material response stem

Style Designator

angle

Furnished Items And Quantity

1 lever

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
BCMBB05MCC Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-672-5225?
The FSCG of the NSN 4820-01-672-5225 is 4820
Does the NSN 4820-01-672-5225 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-672-5225 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 4820-01-672-5225 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-672-5225 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 4820-01-672-5225 was assigned to the Federal Catalog?
It was assigned 8 years ago, on Mon, May 7, 2018