4720-00-585-7309

Find complete technical information, availability, and procurement data for: 4720-00-585-7309
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-585-7309

Item Name Code

20311

Assigment Date

04/11/1966 (60 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.

-65.0 fahrenheit and 160.0 fahrenheit single response temp rating, right-hand 1st end thread direction, 0.250 inches nominal inside diameter, round cross-sectional shape style, 3b 1st end thread class

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 Class: 3b 1st end
Thread Direction: right-hand 1st end
Inside Diameter: 0.250 inches nominal
Temp Rating: -65.0 fahrenheit and 160.0 fahrenheit single response
Outside Diameter: 0.500 inches nominal
Connection Style: swivel nut flare 1st end
End Connection Design: straight 1st end
Connection Type: threaded internal tube 1st end
Burst Test Pressure: 1250.0 pounds per square inch
Layer Composition And Location: 1st layer spirally wrapped cotton fabric and outer layer molded rubber, synthetic
Maximum Operating Pressure: 200.0 pounds per square inch
Nominal Thread Size: 0.438 inches 1st end
Seat Angle: 37.0 degrees 1st end
Hydrostatic Test Pressure: 400.0 pounds per square inch
Outer Covering Environmental Protection: abrasion resistant and fuel resistant and oil resistant
Vacuum In Torr: 254.0
Inside Surface Condition: smooth
Measuring Method And Length: 20.500 inches nominal working
Thread Series Designator: unf 1st end
Specification/Standard Data: 88044-an6270 government standard

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
AN6270-4-20	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-585-7309?

The FSCG of the NSN 4720-00-585-7309 is 4720

Does the NSN 4720-00-585-7309 have a Schedule B code assigned?

Yes, the Schedule B code is 4009320050

Does NSN 4720-00-585-7309 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 4720-00-585-7309 contain precious materials?

Item does not contain precious metal.

Does NSN 4720-00-585-7309 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 4720-00-585-7309 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Mon, Apr 11, 1966