4720-00-231-6138

Find complete technical information, availability, and procurement data for: 4720-00-231-6138
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-231-6138

Item Name Code

20311

Assigment Date

10/19/1970 (55 years ago)

0.437 inches nominal inside diameter, 2b 1st end thread class, right-hand 1st end thread direction, 0.630 inches nominal outside diameter, round cross-sectional shape style

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: 2b 1st end
Thread Direction: right-hand 1st end
Inside Diameter: 0.437 inches nominal
Outside Diameter: 0.630 inches nominal
Exterior Color: black
Connection Style: inverted flare 1st end
End Connection Design: straight 1st end
End Connection Design: straight 2nd end
Connection Type: threaded internal tube 1st end
Connection Type: unthreaded external tube 2nd end
Thread Quantity Per Inch: 18 1st end
Layer Composition And Location: 2nd layer braided rayon cord and 3rd layer molded rubber, synthetic and 1st layer molded rubber, synthetic
Nominal Thread Size: 0.625 inches 1st end
Seat Angle: 37.0 degrees 1st end
Inside Surface Condition: smooth
Measuring Method And Length: 13.000 inches nominal overall
Nominal Outside Diameter Tube Accommodated: 0.630 inches 2nd end
Media For Which Designed: hydraulic fluid single response
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
C8HZ-9288-C	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-231-6138?

The FSCG of the NSN 4720-00-231-6138 is 4720

Does NSN 4720-00-231-6138 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 4720-00-231-6138 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-231-6138 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 4720-00-231-6138 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Mon, Oct 19, 1970