D4729

View detailed technical data, stock status, and sourcing information for: D4729
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part D4729 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-203-8030

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

poppet flow control device, exposed spring bonnet type, 1.500 inches 1st end nominal pipe size accommodated, threaded bonnet attachment method, right-hand 1st end thread direction

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: 1.500 inches 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Bonnet Type: exposed spring
Bonnet Attachment Method: threaded
Disk Loading Method: spring
Renewable Seat Ring Type: threaded
Bolt Hole Quantity: 4 2nd end
Maximum Operating Temp: 425.0 fahrenheit single response
Connection Style: plain,optional end(pipe) 1st end
Valve Operation Method: automatic or manual
Flange Shape: round with holes 2nd end
Connection Type: flange 2nd end
Connection Type: threaded internal pipe 1st end
Features Provided: valve stem lock shield
Thread Quantity Per Inch: 11-1/2 1st end
Adjustable Pressure Range: +7.0 to 25.0 pounds per square inch
Maximum Operating Pressure: 100.0 pounds per square inch single response
Nominal Thread Size: 1.500 inches 1st end
Nominal Outside Diameter: 4.500 inches 2nd end
Nominal Thickness: 0.438 inches 2nd end
First Connection Face To Centerline Distance: 3.062 inches
Bolt Hole Nominal Diameter: 0.562 inches 2nd end
Second Connection Face To Centerline Distance: 2.188 inches
Bolt Circle Nominal Diameter: 3.375 inches 2nd end
Flange Face Design: plain 2nd end
Special Features: bolt holes in flange to straddle centerlines
Material: copper alloy body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material: nickel alloy stem
Media For Which Designed: steam single response
Style Designator: angle flanged ends
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
D4729	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-203-8030?

The FSCG of the NSN 4820-00-203-8030 is 4820

Does the NSN 4820-00-203-8030 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-203-8030 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 4820-00-203-8030 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-203-8030 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 4820-00-203-8030 was assigned to the Federal Catalog?

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