C1058A2D30

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-832-8923

Item Name Code

05488

Assigment Date

03/28/1967 (59 years ago)

250.0 fahrenheit single response maximum operating temp, right-hand 1st end thread direction, poppet flow control device, 0.250 inches 1st end nominal pipe size accommodated, 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.

Nominal Pipe Size Accommodated: 0.250 inches 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: plain (pipe) all ends
Valve Operation Method: air
Connection Type: threaded external pipe 1st end
Thread Quantity Per Inch: 18 1st end
Adjustable Pressure Range: +0.5 to 140.0 pounds per square inch
Maximum Operating Pressure: 140.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 1st end
Opening Pressure Setting: 30.0 pounds per square inch
Special Features: furnished with deflector cap
Material: aluminum alloy seat
Material: aluminum alloy stem
Material: aluminum alloy body
Media For Which Designed: ammonia, gaseous 2nd response
Media For Which Designed: fuel/oil, hydrocarbon 1st response
Media For Which Designed: gas, inert 5th response
Media For Which Designed: gas, natural 4th response
Media For Which Designed: hydrogen 3rd response
Style Designator: straight thru
Thread Series Designator: npt 1st 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
C1058A2D30	Safety Relief Valve
D539A2M30	Safety Relief Valve
D559A2M30	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-832-8923?

The FSCG of the NSN 4820-00-832-8923 is 4820

Does the NSN 4820-00-832-8923 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-832-8923 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 4820-00-832-8923 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-832-8923 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 4820-00-832-8923 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Tue, Mar 28, 1967