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4820-00-003-0997

Check Valve

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Official Item Classification

Name
Check Valve
(NSN) National Stock Number
4820-00-003-0997
(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
05/13/1972 (54 years ago)

ball flow control device, right-hand 2nd end thread direction, right-hand 1st end thread direction, 2a 1st end thread class, 2b 2nd end thread class

Specs & Compatibility

Thread Class

2a 1st end

Thread Class

2b 2nd end

Thread Direction

right-hand 1st end

Thread Direction

right-hand 2nd end

Flow Control Device

ball

Disk Loading Method

spring

Connection Style

flared (tube) 1st end

Connection Style

gasket seal (boss) 2nd end

Valve Operation Method

automatic

Connection Type

threaded external tube 1st end

Connection Type

threaded internal boss 2nd end

Mounting Position

horizontal or vertical

Thread Quantity Per Inch

18 1st end

Thread Quantity Per Inch

18 2nd end

Nominal Thread Size

0.562 inches 1st end

Nominal Thread Size

0.562 inches 2nd end

Seat Angle

37.0 degrees 1st end

Nominal Outside Diameter Tube Accommodated

0.375 inches 1st end

Nominal Outside Diameter Tube Accommodated

0.375 inches 2nd end

Material

steel body

Material

steel flow control device

Style Designator

straight thru

Thread Series Designator

un 1st end

Thread Series Designator

un 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

Related Hardware Products

Part Number Description
4839229-4 Check Valve
74839229 Check Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-003-0997?
The FSCG of the NSN 4820-00-003-0997 is 4820
Does the NSN 4820-00-003-0997 have a Schedule B code assigned?
Yes, the Schedule B code is 8481302090
Does NSN 4820-00-003-0997 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 4820-00-003-0997 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-003-0997 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 4820-00-003-0997 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Sat, May 13, 1972