4820-00-123-2549

Find complete technical information, availability, and procurement data for: 4820-00-123-2549
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-123-2549

Item Name Code

05487

Assigment Date

11/08/1968 (57 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.

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

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: piston
Disk Loading Method: spring
Connection Style: flared (tube) 1st end
Connection Style: flared (tube) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external tube 2nd end
Connection Type: threaded external tube 1st end
Mounting Facility: bulkhead
Mounting Position: horizontal or vertical
Nominal Thread Size: 0.437 inches 1st end
Nominal Thread Size: 0.438 inches 2nd end
Seat Angle: 37.0 degrees 1st end
Seat Angle: 37.0 degrees 2nd end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 2nd end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Material: steel corrosion resisting body
Material: steel corrosion resisting seat
Style Designator: straight thru
Thread Series Designator: unf 1st end
Thread Series Designator: unf 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:

Part Number	Name
250CKF005YAP4C	Check Valve
2643715	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-123-2549?

The FSCG of the NSN 4820-00-123-2549 is 4820

Does the NSN 4820-00-123-2549 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-00-123-2549 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 4820-00-123-2549 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-123-2549 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 4820-00-123-2549 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Nov 8, 1968