4720-00-670-1143

Find complete technical information, availability, and procurement data for: 4720-00-670-1143
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-670-1143

Item Name Code

20311

Assigment Date

01/01/1963 (63 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

0.562 inches nominal outside diameter, round cross-sectional shape style, 0.406 inches nominal inside diameter, 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: 0.406 inches nominal
Outside Diameter: 0.562 inches nominal
Connection Style: swivel nut flare 1st end
End Connection Design: elbow 1st end
Connection Type: threaded internal tube 1st end
Layer Composition And Location: outer layer braided corrosion resistant steel wire
Nominal Thread Size: 0.750 inches 1st end
Seat Angle: 37.0 degrees 1st end
Flow Angle: 90.0 degrees 1st end
Inside Surface Condition: smooth
Measuring Method And Length: 40.000 inches nominal working
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
090-666104J0400	Nonmetallic Hose Assembly
79B1109008C0400	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-670-1143?

The FSCG of the NSN 4720-00-670-1143 is 4720

Does NSN 4720-00-670-1143 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 4720-00-670-1143 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-670-1143 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 4720-00-670-1143 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963