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4820-01-081-9530

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-081-9530
(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
08/23/1979 (47 years ago)

spring disk loading method, poppet flow control device, right-hand 1st end thread direction, 400.0 fahrenheit single response maximum operating temp, plain (pipe) 1st end connection style

Specs & Compatibility

Thread Direction

right-hand 1st end

Flow Control Device

poppet

Disk Loading Method

spring

Maximum Operating Temp

400.0 fahrenheit single response

Connection Style

plain (pipe) 1st end

Valve Operation Method

automatic

Connection Type

threaded external pipe 1st end

Maximum Operating Pressure

200.0 pounds per square inch single response

Nominal Thread Size

0.250 inches 1st end

Material

copper alloy body

Material

rubber synthetic flow control device

Media For Which Designed

fuel/oil, hydrocarbon single response

Style Designator

straight thru

Thread Series Designator

npt 1st end

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

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
3304502 Safety Relief Valve
3304502-1 Safety Relief Valve
532B-2M-30 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-081-9530?
The FSCG of the NSN 4820-01-081-9530 is 4820
Does the NSN 4820-01-081-9530 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-081-9530 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 4820-01-081-9530 contain precious materials?
Precious metal content is unknown
Does NSN 4820-01-081-9530 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 4820-01-081-9530 was assigned to the Federal Catalog?
It was assigned 47 years ago, on Thu, Aug 23, 1979