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4820-01-231-6993

Check Valve

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Official Item Classification

Name
Check Valve
(NSN) National Stock Number
4820-01-231-6993
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
05487
(FIIG) Federal Item Identification Guide
A530B0
Date
05/02/1986 (40 years ago)

threaded internal pipe all ends connection type, disk flow control device, automatic valve operation method, copper alloy body material, horizontal mounting position

Specs & Compatibility

Flow Control Device

disk

Valve Operation Method

automatic

Connection Type

threaded internal pipe all ends

Mounting Position

horizontal

Material

copper alloy body

Media For Which Designed

air 3rd response

Media For Which Designed

water, fresh 1st response

Media For Which Designed

water, salt 2nd response

Style Designator

straight thru

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

0005487

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Frequently Asked Questions

What is the FSCG of the NSN 4820-01-231-6993?
The FSCG of the NSN 4820-01-231-6993 is 4820
Does NSN 4820-01-231-6993 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 4820-01-231-6993 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-231-6993 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 4820-01-231-6993 was assigned to the Federal Catalog?
It was assigned 40 years ago, on Fri, May 2, 1986