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493-8B2-5 Check Valve

4820-00-006-3988

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Official Item Classification

Name
Check Valve
Part Number
493-8B2-5
(NSN) National Stock Number
4820-00-006-3988
(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
06/23/1972 (54 years ago)

Check Valve NSN 4820000063988.

Specs & Compatibility

Thread Class

3b all ends

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Disk Loading Method

Spring

Operating Temperature

up to 225.0 degree fahrenheit single response

Connection Style

Gasket seal (boss) all ends

Valve Operation Method

Automatic

Connection Type

Threaded internal boss all ends

Mounting Position

Horizontal

Thread Quantity Per Inch

16 all ends

Operating Pressure

up to 3000.0 pounds per square inch single response

Nominal Thread Size

0.750 inches all ends

Nominal Outside Diameter Tube Accommodated

0.500 inches all ends

Material

Copper alloy body

Material

Rubber seat

Material

Steel comp 304 flow control device and steel comp 303 flow control device

Material Document and Classification

Mil-g-1149,type 2 class 5 mil spec single material response seat

Material Document and Classification

Qq-b-626,alloy 360 fed spec single material response body

Media For Which Designed

Air 1st response

Media For Which Designed

Fuel/oil, hydrocarbon 2nd response

Style Designator

Straight thru

Thread Series Designator

Unjf all ends

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

Related Hardware Products

Part Number Description
493-8B2-5 Check Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-006-3988?
The FSCG of the NSN 4820-00-006-3988 is 4820
Does the NSN 4820-00-006-3988 have a Schedule B code assigned?
Yes, the Schedule B code is 8481301090
Does NSN 4820-00-006-3988 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 4820-00-006-3988 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-00-006-3988 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 4820-00-006-3988 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Fri, Jun 23, 1972
What is the mounting position of nsn 4820-00-006-3988?
Horizontal