842-200070-437-0000

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-045-5057

Item Name Code

05487

Assigment Date

05/13/1967 (59 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, unthreaded internal pipe 1st end connection type, socket with brazing ring (pipe) 1st end connection style, 2.000 inches 1st end nominal pipe size accommodated, 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.

Nominal Pipe Size Accommodated: 2.000 inches 1st end
Flow Control Device: disk
Connection Style: socket with brazing ring (pipe) 1st end
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe 1st end
Mounting Position: horizontal
Criticality Code Justification: zzzy
Material: copper alloy 903 seat
Material: copper alloy 903 body
Media For Which Designed: water-oil-gas single response
Style Designator: straight thru
Reference Number Differentiating Characteristics: quality control iaw navships 0948-045-7010 material identification and control instruction for level 1 items

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-145-8543	No Name Available	12/01/2002
4820-01-291-8439	No Name Available	02/01/1990

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
2620-927X1ASSY8GA	Check Valve
2620-927X1ASSY8GAL1	Check Valve
2621-927-01 ASSYIA2IN	Check Valve
2621-927-01ASSYIA2INL1	Check Valve
842-200070-437-0000	Check Valve
842-200070-437-0000L1	Check Valve
845-2110235ASSY8GA2IN	Check Valve
845-2110235ASSY8GA2INL1	Check Valve
D3791ASSYC	Check Valve
D3791ASSYCL1	Check Valve
NS4038ASSYIA2IN	Check Valve
NS4038ASSYIA2INL1	Check Valve
SS845-2110235ASSY8GA	Check Valve
SS845-2110235ASSY8GAL1	Check Valve
SS845-2110235REVBASSYBGA2IN	Check Valve
SS845-2110235REVBASSYBGA2INL1	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-045-5057?

The FSCG of the NSN 4820-00-045-5057 is 4820

Does NSN 4820-00-045-5057 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 4820-00-045-5057 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-045-5057 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 4820-00-045-5057 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Sat, May 13, 1967