4820-00-452-6143

Find complete technical information, availability, and procurement data for: 4820-00-452-6143
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-452-6143

Item Name Code

05488

Assigment Date

05/08/1970 (56 years ago)

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

flared (tube) 2nd end connection style, inverted flare (tube) 1st end connection style, poppet flow control device, right-hand all ends thread direction, spring disk loading method

Product Characteristics

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

Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: flared (tube) 2nd end
Connection Style: inverted flare (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Nominal Thread Size: 13.00 millimeters all ends
Thread Pitch In Millimeters: 1.3 all ends
Seat Angle: 20.0 degrees 2nd end
Seat Angle: 30.0 degrees 1st end
Material: steel overall
Style Designator: straight thru note: to be used for valve bodies of separable sections.
Thread Series Designator: iso m 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
1-02552-001	Safety Relief Valve
102552001	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-452-6143?

The FSCG of the NSN 4820-00-452-6143 is 4820

Does the NSN 4820-00-452-6143 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-452-6143 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 4820-00-452-6143 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-452-6143 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 4820-00-452-6143 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, May 8, 1970