3910728

View detailed technical data, stock status, and sourcing information for: 3910728
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-859-4521

Item Name Code

20311

Assigment Date

10/06/1967 (58 years ago)

right-hand 1st end thread direction, round cross-sectional shape style, right-hand 2nd end thread direction, 2a 1st end thread class, 2b and 2a 2nd 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: 2a 1st end
Thread Class: 2b and 2a 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Inside Diameter: 0.188 inches nominal
Temp Rating: -40.0 fahrenheit and 200.0 fahrenheit single response
Outside Diameter: 0.485 inches nominal
Minimum Inside Bending Radius: 3.500 inches
Exterior Color: black
Connection Style: inverted flare 1st end
Connection Style: inverted flare 2nd end
End Connection Design: straight 1st end
End Connection Design: straight 2nd end
End Fitting Component And Material: complete fitting steel all ends
Fitting Component And Surface Treatment: complete fitting dichromate 1st end
Connection Type: internally and externally threaded tube 2nd end
Connection Type: threaded external tube 1st end
Burst Test Pressure: 1000.0 pounds per square inch
Layer Composition And Location: 1st layer rubber impregnated braided cotton cord or 1st layer rubber impregnated braided rayon cord and 2nd layer rubber impregnated braided cotton cord or 2nd layer rubber impregnated braided rayon cord and outer layer molded rubber
Maximum Operating Pressure: 250.0 pounds per square inch
Nominal Thread Size: 0.375 inches and 0.562 inches 2nd end
Nominal Thread Size: 0.438 inches 1st end
Seat Angle: 37.0 degrees 1st end
Hydrostatic Test Pressure: 500.0 pounds per square inch
Outer Covering Environmental Protection: weatherproof
Inside Surface Condition: smooth
Measuring Method And Length: 23.250 inches nominal overall
Special Features: inner conveying tube material-rubber
Media For Which Designed: fuel/oil, hydrocarbon single response
Thread Series Designator: unf 1st end
Thread Series Designator: unf 2nd end
Specification/Standard Data: sae j1401-81343 national std/spec

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2530-00-086-2186	No Name Available	06/23/1969

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
2279716	Nonmetallic Hose Assembly
3822184	Nonmetallic Hose Assembly
3910715	Nonmetallic Hose Assembly
3910728	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-859-4521?

The FSCG of the NSN 4720-00-859-4521 is 4720

Does NSN 4720-00-859-4521 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 4720-00-859-4521 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-859-4521 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 4720-00-859-4521 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, Oct 6, 1967