4720-01-547-7787

Find complete technical information, availability, and procurement data for: 4720-01-547-7787
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-01-547-7787

Item Name Code

20311

Assigment Date

01/31/2007 (19 years ago)

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

round cross-sectional shape style, 3b 2nd end thread class, right-hand 2nd end thread direction, 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 Class: 3b 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Inside Diameter: 0.188 inches nominal
Outside Diameter: 0.312 inches nominal
Minimum Inside Bending Radius: 2.000 inches
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
Burst Test Pressure: 12000.0 pounds per square inch
Maximum Operating Pressure: 1500.0 pounds per square inch
Nominal Thread Size: 0.438 inches 1st end
Nominal Thread Size: 0.438 inches 2nd end
Seat Angle: 37.0 degrees 1st end
Seat Angle: 37.0 degrees 2nd end
Flow Angle: 90.0 degrees 2nd end
Measuring Method And Length: 4.250 inches nominal working
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
SS40-7A042000	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-01-547-7787?

The FSCG of the NSN 4720-01-547-7787 is 4720

Does NSN 4720-01-547-7787 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 4720-01-547-7787 contain precious materials?

Item does not contain precious metal.

Does NSN 4720-01-547-7787 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 4720-01-547-7787 was assigned to the Federal Catalog?

It was assigned 19 years ago, on Wed, Jan 31, 2007