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4820-00-357-5034

Check Valve

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Official Item Classification

Name
Check Valve
(NSN) National Stock Number
4820-00-357-5034
(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
02/06/1974 (52 years ago)

right-hand 1st end thread direction, 2a 2nd end thread class, right-hand 2nd end thread direction, poppet flow control device, spring disk loading method

Specs & Compatibility

Thread Class

2a 2nd end

Thread Direction

right-hand 1st end

Thread Direction

right-hand 2nd end

Flow Control Device

poppet

Disk Loading Method

spring

Connection Style

double threaded section boss fitting gasket with locknut sealing, boss 2nd end

Connection Style

plain, optional end (pipe) 1st end

Valve Operation Method

automatic

Connection Type

threaded external boss 2nd end

Connection Type

threaded internal pipe 1st end

Mounting Facility

bulkhead

Mounting Position

horizontal

Nominal Thread Size

0.125 inches 1st end

Nominal Thread Size

0.437 inches 2nd end

Special Features

item furnished with 1 lubricator

Material

steel corrosion resisting overall

Surface Treatment

passivate

Style Designator

straight thru

Thread Series Designator

npt 1st end

Thread Series Designator

unf 2nd end

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 4820-00-357-5034?
The FSCG of the NSN 4820-00-357-5034 is 4820
Does the NSN 4820-00-357-5034 have a Schedule B code assigned?
Yes, the Schedule B code is 8481302090
Does NSN 4820-00-357-5034 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 4820-00-357-5034 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-357-5034 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 4820-00-357-5034 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Wed, Feb 6, 1974