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4820-01-005-0593

Check Valve

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Official Item Classification

Name
Check Valve
(NSN) National Stock Number
4820-01-005-0593
(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
06/19/1975 (51 years ago)

plain (pipe) all ends connection style, poppet flow control device, pressed-in renewable seat ring type, 400.0 fahrenheit single response maximum operating temp, right-hand all ends thread direction

Specs & Compatibility

Thread Direction

right-hand all ends

Flow Control Device

poppet

Renewable Seat Ring Type

pressed-in

Maximum Operating Temp

400.0 fahrenheit single response

Connection Style

plain (pipe) all ends

Valve Operation Method

automatic

Connection Type

threaded external pipe all ends

Mounting Position

horizontal or vertical

Maximum Operating Pressure

250.0 pounds per square inch single response

Nominal Thread Size

0.250 inches all ends

Material

rubber synthetic flow control device

Material

steel comp 303 body

Material

steel comp 316 seat

Material Document And Classification

fed-std-66, aisi 303/sae 30303 fed std 1st material response body

Material Document And Classification

fed-std-66, aisi 316/sae 30316 fed std 2nd material response seat

Media For Which Designed

carbon tetrachloride 1st response

Media For Which Designed

gas, inert 2nd response

Media For Which Designed

water, fresh 3rd response

Style Designator

straight thru

Thread Series Designator

npt all ends

Replacement For

Part Number Description
4820-01-026-0679 No Name Available 11/01/1990

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

0005487

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Frequently Asked Questions

What is the FSCG of the NSN 4820-01-005-0593?
The FSCG of the NSN 4820-01-005-0593 is 4820
Does the NSN 4820-01-005-0593 have a Schedule B code assigned?
Yes, the Schedule B code is 8481302090
Does NSN 4820-01-005-0593 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 4820-01-005-0593 contain precious materials?
Precious metal content is unknown
Does NSN 4820-01-005-0593 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 4820-01-005-0593 was assigned to the Federal Catalog?
It was assigned 51 years ago, on Thu, Jun 19, 1975