4820-01-434-3921

Find complete technical information, availability, and procurement data for: 4820-01-434-3921
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-434-3921

Item Name Code

05487

Assigment Date

07/29/1996 (30 years ago)

"a device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. Excludes:circuit breaker box and magneto "breaker" assemblies. See also switch (as modified); and controller."

automatic valve operation method, wafer mounting facility, strategic sealift conversion ships class end item identification, spring disk loading method, disk flow control device

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
End Item Identification: strategic sealift conversion ships class
Valve Operation Method: automatic
Mounting Facility: wafer
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 200.0 pounds per square inch single response
Material: copper alloy 836 body
Material: nickel alloy flow control device
Material: nickel alloy seat
Media For Which Designed: water-oil-gas single response
Style Designator: straight thru

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
3IN-101M-BU	Check Valve
ACV-3158	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-434-3921?

The FSCG of the NSN 4820-01-434-3921 is 4820

Does the NSN 4820-01-434-3921 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-434-3921 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 4820-01-434-3921 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-434-3921 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 4820-01-434-3921 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Mon, Jul 29, 1996