681-4-PL-0884-C

View detailed technical data, stock status, and sourcing information for: 681-4-PL-0884-C
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-136-6536

Item Name Code

05487

Assigment Date

08/12/1982 (43 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.

2a all ends thread class, right-hand all ends thread direction, spring disk loading method, disk flow control device, 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: 2a all ends
Thread Direction: right-hand all ends
Flow Control Device: disk
Disk Loading Method: spring
Renewable Seat Ring Type: pressed-in
Maximum Operating Temp: 225.0 fahrenheit single response
Connection Style: plain (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Mounting Position: horizontal
Thread Quantity Per Inch: 12 all ends
Maximum Operating Pressure: 6000.0 pounds per square inch single response
Nominal Thread Size: 2.000 inches all ends
Material: copper alloy body
Material: nickel alloy flow control device
Material: steel corrosion resisting seat
Media For Which Designed: water-oil-gas single response
Style Designator: angle
Thread Series Designator: un 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
67178-2 .75IPS	Check Valve
681-4	Check Valve
681-4-PL-0884-C	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-136-6536?

The FSCG of the NSN 4820-01-136-6536 is 4820

Does the NSN 4820-01-136-6536 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-136-6536 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 4820-01-136-6536 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-136-6536 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 4820-01-136-6536 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Thu, Aug 12, 1982