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4820-01-271-0209

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-271-0209
(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
01/16/1988 (38 years ago)

0.250 inches all ends nominal thread size, right-hand all ends thread direction, automatic valve operation method, plain (pipe) all ends connection style, threaded external pipe all ends connection type

Specs & Compatibility

Thread Direction

right-hand all ends

Connection Style

plain (pipe) all ends

Valve Operation Method

automatic

Connection Type

threaded external pipe all ends

Nominal Thread Size

0.250 inches all ends

Opening Pressure Setting

200.0 pounds per square inch

Material

copper alloy body

Style Designator

straight thru

Thread Series Designator

npt all ends

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
S

The item is a non-aviation critical safety item (csi) whose failure will result in serious damage to equipment or serious injury or death to personnel.

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
533B-2M-200 Safety Relief Valve
533B-2M-200CP Safety Relief Valve
HP533B-2M-200 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-271-0209?
The FSCG of the NSN 4820-01-271-0209 is 4820
Does the NSN 4820-01-271-0209 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-271-0209 require demilitarization?
"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"
Does NSN 4820-01-271-0209 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-271-0209 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 4820-01-271-0209 was assigned to the Federal Catalog?
It was assigned 38 years ago, on Sat, Jan 16, 1988