559A-4DB-3.3

View detailed technical data, stock status, and sourcing information for: 559A-4DB-3.3
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-059-3527

Item Name Code

05488

Assigment Date

04/10/1978 (48 years ago)

A manually or power operated valve having three or more ports. The direction of the flow through the various ports is controlled by either one or more reciprocating slide(s) or spool(s) with recess areas which mate with ports in an integral or replaceable ported sleeve, or one or more poppet(s). It is designed to change the direction of fluid flow from one valve port to another. An off (no flow) position is not a flow pattern. The valve is designed to actuate various components of a fluid system. A power operated valve may have a manual override. For items which stop, start, or change the flow of fluid, see: valve, solenoid. Excludes:valve, plug. See also servovalve, hydraulic; body section, working, linear directional control valve; and valve assembly.

3b 2nd end thread class, right-hand all ends thread direction, 275.0 fahrenheit single response maximum operating temp, 3a 1st end thread class, poppet 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.

Thread Class: 3a 1st end
Thread Class: 3b 2nd end
Thread Direction: right-hand all ends
Flow Control Device: poppet
Maximum Operating Temp: 275.0 fahrenheit single response
Minimum Operating Temp: -65.0 fahrenheit
Connection Style: external seat for gasket seal (boss) 1st end
Connection Style: gasket seal(boss) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external boss 1st end
Connection Type: threaded internal boss 2nd end
Thread Quantity Per Inch: 20 all ends
Nominal Thread Size: 0.438 inches all ends
Opening Pressure Setting: 3.3 pounds per square inch
Material: aluminum alloy 2024 body
Style Designator: straight thru note: to be used for valve bodies of one section only.
Thread Series Designator: unj 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
559A-4DB-3.3	Safety Relief Valve
C9268-1	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-059-3527?

The FSCG of the NSN 4820-01-059-3527 is 4820

Does the NSN 4820-01-059-3527 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-059-3527 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 4820-01-059-3527 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-059-3527 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 4820-01-059-3527 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Mon, Apr 10, 1978