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4820-01-271-1900

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-271-1900
(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
01/20/1988 (38 years ago)

disk flow control device, automatic valve operation method, 0.250 inches all ends nominal thread size, copper alloy body material, +30.0 to 50.0 pounds per square inch adjustable pressure range

Specs & Compatibility

Flow Control Device

disk

Valve Operation Method

automatic

Adjustable Pressure Range

+30.0 to 50.0 pounds per square inch

Nominal Thread Size

0.250 inches all ends

Material

copper alloy body

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
1385 1/4 PL4149/4126 30T50 Safety Relief Valve
2385A224 Safety Relief Valve
50-105-0454-1 Safety Relief Valve
YB2385A224 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-271-1900?
The FSCG of the NSN 4820-01-271-1900 is 4820
Does the NSN 4820-01-271-1900 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-271-1900 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 4820-01-271-1900 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-271-1900 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 4820-01-271-1900 was assigned to the Federal Catalog?
It was assigned 38 years ago, on Wed, Jan 20, 1988