4720-00-399-1182

Find complete technical information, availability, and procurement data for: 4720-00-399-1182
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-399-1182

Item Name Code

20311

Assigment Date

04/18/1974 (52 years ago)

A device designed to regulate vacuum within the desired operating limits. See also valve, vacuum breaking.

0.500 inches nominal inside diameter, 3b 1st end thread class, right-hand 1st end thread direction, round cross-sectional shape style, -65.0 fahrenheit and 250.0 fahrenheit single response temp rating

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: 0.500 inches nominal
Temp Rating: -65.0 fahrenheit and 250.0 fahrenheit single response
Outside Diameter: 0.921 inches nominal
Minimum Inside Bending Radius: 5.500 inches
Connection Style: swivel nut flare 1st end
End Connection Design: straight 1st end
Connection Type: threaded internal tube 1st end
Burst Test Pressure: 7000.0 pounds per square inch
Layer Composition And Location: 2nd layer braided corrosion resistant steel wire and 1st layer braided cotton cord and outer layer rubber impregnated braided cotton cord
Maximum Operating Pressure: 1750.0 pounds per square inch
Nominal Thread Size: 0.875 inches 1st end
Seat Angle: 37.0 degrees 1st end
Hydrostatic Test Pressure: 3500.0 pounds per square inch
Outer Covering Environmental Protection: oil resistant
Vacuum In Torr: 50.8
Inside Surface Condition: smooth
Measuring Method And Length: 28.000 inches nominal working
Media For Which Designed: fuel/oil, hydrocarbon single response
Thread Series Designator: unjf 1st end
Specification/Standard Data: 96906-ms28741 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
MS28741-10-0280	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-399-1182?

The FSCG of the NSN 4720-00-399-1182 is 4720

Does NSN 4720-00-399-1182 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 4720-00-399-1182 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-399-1182 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 4720-00-399-1182 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Thu, Apr 18, 1974