4720-01-271-7999

Find complete technical information, availability, and procurement data for: 4720-01-271-7999
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-01-271-7999

Item Name Code

20311

Assigment Date

01/30/1988 (38 years ago)

A flexible, tubular item having a nonmetallic tube inner conveying surface and one or more reinforcement layers of a metallic or nonmetallic material. It is designed to convey gasses, liquids, or solids. For items with fittings on one or both ends, see hose assembly, nonmetallic. Excludes:hose, air duct; and hose air duct, air breathing.

0.256 inches minimum inside diameter, round cross-sectional shape style, -65.0 fahrenheit and 265.0 fahrenheit single response temp rating, right-hand 1st end thread direction, 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: 0.256 inches minimum
Temp Rating: -65.0 fahrenheit and 265.0 fahrenheit single response
Outside Diameter: 0.570 inches maximum
Minimum Inside Bending Radius: 2.000 inches
Exterior Color: natural
End Item Identification: 43999; envircnmental control system coolant line
Connection Style: swivel nut, gasket seal 1st end
End Connection Design: straight 1st end
Connection Type: threaded internal hose 1st end
Features Provided: electrostatic discharge capability and reusable end fittings
Burst Test Pressure: 475.0 pounds per square inch
Layer Composition And Location: outer layer braided corrosion resistant steel wire
Maximum Operating Pressure: 190.0 pounds per square inch
Nominal Thread Size: 0.562 inches 1st end
Seat Angle: 37.0 degrees 1st end
Hydrostatic Test Pressure: 285.0 pounds per square inch
Outer Covering Environmental Protection: abrasion resistant and corrosion resistant
Vacuum In Torr: 20.0
Inside Surface Condition: smooth
Measuring Method And Length: 19.500 inches nominal overall
Thread Series Designator: unf 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
106459-0281	Nonmetallic Hose Assembly
AE706417-0281	Nonmetallic Hose Assembly
LE271-0045-0281	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-01-271-7999?

The FSCG of the NSN 4720-01-271-7999 is 4720

Does the NSN 4720-01-271-7999 have a Schedule B code assigned?

Yes, the Schedule B code is 8307100000

Does NSN 4720-01-271-7999 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 4720-01-271-7999 contain precious materials?

Item does not contain precious metal.

Does NSN 4720-01-271-7999 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 4720-01-271-7999 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sat, Jan 30, 1988