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4820-01-059-0348

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-059-0348
(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
04/06/1978 (48 years ago)

right-hand all ends thread direction, automatic valve operation method, 225.0 fahrenheit single response maximum operating temp, plain (pipe) all ends connection style, poppet flow control device

Specs & Compatibility

Thread Direction

right-hand all ends

Flow Control Device

poppet

Maximum Operating Temp

225.0 fahrenheit single response

Connection Style

plain (pipe) all ends

Valve Operation Method

automatic

Connection Type

threaded external pipe all ends

Maximum Operating Pressure

50.0 pounds per square inch single response

Nominal Thread Size

0.125 inches all ends

Material

rubber synthetic seat

Material

steel comp 303 flow control device

Material

steel corrosion resisting body

Media For Which Designed

air 1st response

Media For Which Designed

gas, inert 2nd response

Style Designator

straight thru

Thread Series Designator

npt all ends

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
684-2-1/8SS1 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-059-0348?
The FSCG of the NSN 4820-01-059-0348 is 4820
Does the NSN 4820-01-059-0348 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-059-0348 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 4820-01-059-0348 contain precious materials?
Precious metal content is unknown
Does NSN 4820-01-059-0348 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 4820-01-059-0348 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Thu, Apr 6, 1978