4820-00-569-4551

Find complete technical information, availability, and procurement data for: 4820-00-569-4551
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-569-4551

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

right-hand 2nd end thread direction, right-hand 1st end thread direction, 2a 2nd end thread class, ball flow control device, 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.

Thread Class: 2a 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: ball
Disk Loading Method: spring
Connection Style: plain (pipe) 1st end
Connection Style: plain (pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded external pipe 2nd end
Nominal Thread Size: 0.250 inches 1st end
Nominal Thread Size: 0.500 inches 2nd end
Opening Pressure Setting: 185.0 pounds per square inch
Special Features: two 0.125 in. dia 0.125 in. deep holes on ea side spaced 180 deg apart,hex wrenching features
Material: copper alloy overall
Style Designator: straight thru
Thread Series Designator: npt 1st end
Thread Series Designator: unf 2nd end

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
SV1-4-185	Safety Relief Valve
SVX1-4X185	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-569-4551?

The FSCG of the NSN 4820-00-569-4551 is 4820

Does the NSN 4820-00-569-4551 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-569-4551 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 4820-00-569-4551 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-569-4551 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 4820-00-569-4551 was assigned to the Federal Catalog?

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