4720-01-399-1851

Find complete technical information, availability, and procurement data for: 4720-01-399-1851
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-01-399-1851

Item Name Code

22670

Assigment Date

11/18/1994 (31 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.

round cross-sectional shape style, 0.594 inches nominal outside diameter, 0.312 inches nominal inside diameter, -40.0 fahrenheit and 200.0 fahrenheit single response temp rating, 3.300 inches minimum inside bending radius

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
Inside Diameter: 0.312 inches nominal
Temp Rating: -40.0 fahrenheit and 200.0 fahrenheit single response
Outside Diameter: 0.594 inches nominal
Minimum Inside Bending Radius: 3.300 inches
Exterior Color: black
Burst Test Pressure: 1000.0 pounds per square inch single response
Layer Composition And Location: 1st layer braided textile yarn and 2nd layer braided textile yarn and outer layer molded rubber, synthetic
Maximum Operating Pressure: 250.0 pounds per square inch single response
Hydrostatic Test Pressure: 500.0 pounds per square inch single response
Outer Covering Environmental Protection: ozone resistant and weatherproof and heat resistant and light resistant
Inside Surface Condition: smooth
Measuring Method And Length: 50.0 feet nominal overall
Material: rubber synthetic tube
Media For Which Designed: fuel/oil, hydrocarbon single response

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
4720PL1914630	Nonmetallic Hose
7093-31300	Nonmetallic Hose
7193-31250	Nonmetallic Hose

FAQs

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

What is the FSCG of the NSN 4720-01-399-1851?

The FSCG of the NSN 4720-01-399-1851 is 4720

Does NSN 4720-01-399-1851 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 4720-01-399-1851 contain precious materials?

Item does not contain precious metal.

Does NSN 4720-01-399-1851 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 4720-01-399-1851 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Fri, Nov 18, 1994