6851961

View detailed technical data, stock status, and sourcing information for: 6851961
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-110-5530

Item Name Code

05487

Assigment Date

08/09/1968 (58 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.

flared (tube) 1st end connection style, 3a 1st end thread class, poppet flow control device, right-hand 1st end thread direction, automatic valve operation method

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 Direction: right-hand 1st end
Flow Control Device: poppet
Connection Style: flared (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external tube 2nd end
Connection Type: threaded external tube 1st end
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 16 1st end
Nominal Thread Size: 0.750 inches 1st end
Seat Angle: 37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated: 0.500 inches 1st end
Material: aluminum alloy overall
Style Designator: straight thru
Thread Series Designator: unf 1st 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
6851961	Check Valve
8CV681	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-110-5530?

The FSCG of the NSN 4820-00-110-5530 is 4820

Does the NSN 4820-00-110-5530 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-00-110-5530 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 4820-00-110-5530 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-110-5530 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 4820-00-110-5530 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, Aug 9, 1968