4820-00-993-4001

Find complete technical information, availability, and procurement data for: 4820-00-993-4001
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-993-4001

Item Name Code

05487

Assigment Date

04/04/1967 (59 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

3b all ends thread class, poppet flow control device, right-hand 1st end thread direction, spring disk loading method, pressed-in renewable seat ring type

Product Characteristics

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

Thread Class: 3b all ends
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Renewable Seat Ring Type: pressed-in
Maximum Operating Temp: 200.0 fahrenheit single response
Connection Style: gasket seal (boss) all ends
Valve Operation Method: automatic
Connection Type: threaded internal boss all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 10000.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches all ends
Criticality Code Justification: feat
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Special Features: cleaned for special service per king nutronics corp dwg no. 3460-131
Material: steel corrosion resisting overall
Media For Which Designed: air single response
Style Designator: straight thru
Thread Series Designator: unf all ends

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:

Part Number	Name
3460-131-1	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-993-4001?

The FSCG of the NSN 4820-00-993-4001 is 4820

Does the NSN 4820-00-993-4001 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-00-993-4001 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 4820-00-993-4001 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-993-4001 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 4820-00-993-4001 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Tue, Apr 4, 1967