5995-001-1 1-2I

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-922-0049

Item Name Code

05487

Assigment Date

05/13/1972 (54 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.

disk flow control device, 1.500 inches all ends nominal pipe size accommodated, threaded renewable seat ring type, 150.0 fahrenheit single response maximum operating temp, 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.

Nominal Pipe Size Accommodated: 1.500 inches all ends
Flow Control Device: disk
Disk Loading Method: spring
Renewable Seat Ring Type: threaded
Maximum Operating Temp: 150.0 fahrenheit single response
Connection Style: socket with brazing ring (pipe) all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Mounting Position: horizontal
Maximum Operating Pressure: 400.0 pounds per square inch single response
Special Features: 1-1/2 in. valve size
Material: copper alloy body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material Document And Classification: qq-c-390,alloy d4/d fed spec single material response body
Media For Which Designed: air 1st response
Media For Which Designed: oil, hydraulic 2nd response
Media For Which Designed: water, salt 3rd response
Style Designator: straight thru
Test Data Document: "81349-mil-s-901 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Nondefinitive Spec/Std Data: b type and 3 class

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
5995-001-1 1-2I	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-922-0049?

The FSCG of the NSN 4820-00-922-0049 is 4820

Does the NSN 4820-00-922-0049 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-00-922-0049 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 4820-00-922-0049 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-922-0049 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 4820-00-922-0049 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sat, May 13, 1972