785Y 1-1/2IN

View detailed technical data, stock status, and sourcing information for: 785Y 1-1/2IN
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-087-8451

Item Name Code

05487

Assigment Date

01/01/1963 (63 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.

automatic valve operation method, disk flow control device, unthreaded internal tube all ends connection type, spring disk loading method, socket (tube) all ends connection style

Product Characteristics

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

Flow Control Device: disk
Disk Loading Method: spring
Connection Style: socket (tube) all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal tube all ends
Mounting Position: horizontal
Maximum Operating Pressure: 125.0 pounds per square inch single response
Nominal Outside Diameter Tube Accommodated: 1.500 inches all ends
Material: copper alloy 836 overall
Material Document And Classification: qq-c-390, alloy b5 fed spec single material response overall
Media For Which Designed: steam single response
Style Designator: straight thru

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-932-4657	No Name Available	06/14/2023

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
785Y 1-1/2IN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-087-8451?

The FSCG of the NSN 4820-00-087-8451 is 4820

Does the NSN 4820-00-087-8451 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-00-087-8451 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 4820-00-087-8451 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-087-8451 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 4820-00-087-8451 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963