4720-01-499-6681

Find complete technical information, availability, and procurement data for: 4720-01-499-6681
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-01-499-6681

Item Name Code

20311

Assigment Date

07/31/2002 (23 years ago)

A headless fastener not exceeding 12 inches (304.8 mm) in length, threaded externally on both ends with threads of the same nominal diameter. The maximum diameter of the unthreaded portion must not be greater than the nominal thread diameter plus 0.020 inches (0.508 mm). The unthreaded portion must be without locking or wrenching provisions. It may be thread relieved. See also rod, threaded end and rod, continuous thread.

2b 1st end thread class, 2b 2nd end thread class, right-hand 1st end thread direction, round cross-sectional shape style, 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: 2b 1st end
Thread Class: 2b 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Inside Diameter: 0.500 inches nominal
Temp Rating: -55.0 fahrenheit and 300.0 fahrenheit single response
Outside Diameter: 0.940 inches nominal
Minimum Inside Bending Radius: 2.250 inches
Exterior Color: black
End Item Identification: vehicle, truck tractor; 2320-01-452-5579
Connection Style: swivel nut flare 1st end
Connection Style: swivel nut flare 2nd end
End Connection Design: elbow 2nd end
End Connection Design: straight 1st end
Connection Type: threaded internal tube 1st end
Connection Type: threaded internal tube 2nd end
Features Provided: reusable end fittings
Burst Test Pressure: 5000.0 pounds per square inch
Layer Composition And Location: outer layer braided polyester cord and 1st layer braided polyester cord and 2nd layer braided steel wire
Maximum Operating Pressure: 1250.0 pounds per square inch
Nominal Thread Size: 0.875 inches 1st end
Nominal Thread Size: 0.875 inches 2nd end
Seat Angle: 37.0 degrees 1st end
Seat Angle: 37.0 degrees 2nd end
Flow Angle: 90.0 degrees 2nd end
Vacuum In Torr: 50.8
Inside Surface Condition: smooth
Measuring Method And Length: 75.000 inches nominal overall
Thread Series Designator: unf 1st end
Thread Series Designator: unf 2nd 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
145-2764	Nonmetallic Hose Assembly
A145-1644	Nonmetallic Hose Assembly
A145-2764	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-01-499-6681?

The FSCG of the NSN 4720-01-499-6681 is 4720

Does NSN 4720-01-499-6681 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 4720-01-499-6681 contain precious materials?

Item does not contain precious metal.

Does NSN 4720-01-499-6681 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 4720-01-499-6681 was assigned to the Federal Catalog?

It was assigned 23 years ago, on Wed, Jul 31, 2002