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4820-00-450-9370

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-00-450-9370
(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
01/02/1970 (56 years ago)

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

Specs & Compatibility

Thread Direction

right-hand all ends

Flow Control Device

poppet

Maximum Operating Temp

180.0 fahrenheit single response

Connection Style

plain (tube) all ends

Valve Operation Method

automatic

Connection Type

threaded external tube all ends

Maximum Operating Pressure

600.0 pounds per square inch single response

Nominal Thread Size

0.750 inches all ends

Material

aluminum alloy 2024 body

Material Document And Classification

qq-a-225/6,t4 fed spec single material response body

Style Designator

straight thru note: to be used for valve bodies of one section only.

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.

Source of Supply Code

S9C

Pseudo Item Name Code

0005488

Related Hardware Products

Part Number Description
869A12TT Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-450-9370?
The FSCG of the NSN 4820-00-450-9370 is 4820
Does the NSN 4820-00-450-9370 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-450-9370 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 4820-00-450-9370 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-450-9370 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 4820-00-450-9370 was assigned to the Federal Catalog?
It was assigned 56 years ago, on Fri, Jan 2, 1970