4720-00-470-1731

Find complete technical information, availability, and procurement data for: 4720-00-470-1731
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-470-1731

Item Name Code

20311

Assigment Date

01/15/1971 (55 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

0.750 inches nominal outside diameter, -40.0 fahrenheit and 250.0 fahrenheit single response temp rating, right-hand 1st end thread direction, round cross-sectional shape style, 0.375 inches nominal inside diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Cross-Sectional Shape Style: round
Thread Direction: right-hand 1st end
Inside Diameter: 0.375 inches nominal
Temp Rating: -40.0 fahrenheit and 250.0 fahrenheit single response
Outside Diameter: 0.750 inches nominal
Minimum Inside Bending Radius: 1.750 inches
Connection Style: gladhand 2nd end
Connection Style: inverted flare 1st end
End Connection Design: straight 1st end
Connection Type: glad hand quick disconnect 2nd end
Connection Type: threaded external pipe 1st end
Burst Test Pressure: 900.0 pounds per square inch
Layer Composition And Location: 2nd layer braided textile yarn and 1st layer braided textile yarn and outer layer molded rubber, chloroprene
Maximum Operating Pressure: 225.0 pounds per square inch
Nominal Thread Size: 0.500 inches 1st end
Seat Angle: 30.0 degrees 1st end
Outer Covering Environmental Protection: abrasion resistant and oil resistant and ozone resistant and cold resistant
Vacuum In Torr: 50.8
Inside Surface Condition: smooth
Measuring Method And Length: 237.781 inches maximum overall
Media For Which Designed: air single response
Thread Series Designator: nptf 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
8330805-5	Nonmetallic Hose Assembly
FA8836HGH2350	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-470-1731?

The FSCG of the NSN 4720-00-470-1731 is 4720

Does NSN 4720-00-470-1731 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 4720-00-470-1731 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-470-1731 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 4720-00-470-1731 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Fri, Jan 15, 1971