4720-00-557-9779

Find complete technical information, availability, and procurement data for: 4720-00-557-9779
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for NSN 4720-00-557-9779 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-557-9779

Item Name Code

20311

Assigment Date

10/22/1969 (56 years ago)

right-hand 1st end thread direction, 3b 1st end thread class, round cross-sectional shape style, 0.500 inches nominal inside diameter, right-hand 2nd end thread direction

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
Thread Direction: right-hand 2nd end
Inside Diameter: 0.500 inches nominal
Temp Rating: -40.0 fahrenheit and 200.0 fahrenheit single response
Outside Diameter: 0.750 inches nominal
Minimum Inside Bending Radius: 5.000 inches
Exterior Color: black
Connection Style: swivel nut flare 1st end
Connection Style: inverted flare 2nd end
End Connection Design: straight 1st end
End Connection Design: straight 2nd end
Connection Type: threaded external pipe 2nd end
Connection Type: threaded internal tube 1st end
Burst Test Pressure: 8000.0 pounds per square inch
Layer Composition And Location: 1st layer braided sisal fiber and outer layer molded rubber, chloroprene
Maximum Operating Pressure: 2000.0 pounds per square inch
Nominal Thread Size: 0.500 inches 2nd end
Nominal Thread Size: 0.750 inches 1st end
Seat Angle: 30.0 degrees 2nd end
Seat Angle: 37.0 degrees and 45.0 degrees 1st end
Hydrostatic Test Pressure: 4000.0 pounds per square inch
Outer Covering Environmental Protection: abrasion resistant and fire resistant and oil resistant
Inside Surface Condition: smooth
Measuring Method And Length: 13.375 inches nominal overall
Thread Series Designator: nptf 2nd end
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
4368877	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-557-9779?

The FSCG of the NSN 4720-00-557-9779 is 4720

Does the NSN 4720-00-557-9779 have a Schedule B code assigned?

Yes, the Schedule B code is 4006900000

Does NSN 4720-00-557-9779 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 4720-00-557-9779 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-557-9779 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 4720-00-557-9779 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Oct 22, 1969