4820-01-112-3895

Find complete technical information, availability, and procurement data for: 4820-01-112-3895
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-112-3895

Item Name Code

20520

Assigment Date

05/03/1981 (45 years ago)

3a 2nd end thread class, right-hand 2nd end thread direction, disk flow control device, right-hand 1st end thread direction, 3a 1st end thread class

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3a 1st end
Thread Class: 3a 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: disk
Connection Style: flared (tube) 1st end
Connection Style: flareless 2nd end
Valve Operation Method: automatic
Connection Type: threaded external tube 2nd end
Connection Type: threaded external tube 1st end
Mounting Position: horizontal
Thread Quantity Per Inch: 20 2nd end
Thread Quantity Per Inch: 20 1st end
Maximum Operating Pressure: 1750.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches 1st end
Nominal Thread Size: 0.438 inches 2nd end
Seat Angle: 12.0 degrees 2nd end
Seat Angle: 37.0 degrees 1st end
Special Features: one end with four slots spaced 90 deg apart; square wrenching feature,with one 0.047 in. dia hole across each corner,0.810 in. square across corner flats,with lockwire and nameplate tag thru one corner hole
Material: steel comp 630 overall
Material Document And Classification: ams 5643 assn std single material response overall
Media For Which Designed: hydraulic fluid, petroleum base single response
Style Designator: straight thru
Thread Series Designator: unj 1st end
Thread Series Designator: unj 2nd end

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

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94933-1450	Restrictor Check Valve

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-01-112-3895?

The FSCG of the NSN 4820-01-112-3895 is 4820

Does the NSN 4820-01-112-3895 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-112-3895 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 4820-01-112-3895 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-112-3895 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 4820-01-112-3895 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Sun, May 3, 1981