4158AS0990

View detailed technical data, stock status, and sourcing information for: 4158AS0990
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-01-691-4730

Item Name Code

20311

Assigment Date

10/13/2020 (5 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

1.25 inches nominal inside diameter, round cross-sectional shape style, 1.50 inches nominal outside diameter, 3b 1st end thread class, right-hand 1st 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: 3b 1st end
Thread Direction: right-hand 1st end
Inside Diameter: 1.25 inches nominal
Outside Diameter: 1.50 inches nominal
End Item Identification: consiol gse/ch-53k
Connection Style: beaded 1st end
End Connection Design: straight all ends
Connection Type: unthreaded external hose 1st end
Thread Quantity Per Inch: 12 1st end
Nominal Thread Size: 1.125 inches 1st end
Measuring Method And Length: 10.00 inches minimum excluding end fittings
Part Name Assigned By Controlling Agency: hose, sampling, fuel
Media For Which Designed: aircraft fuel single response
Thread Series Designator: unjf 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
4158AS0990	Nonmetallic Hose Assembly
4158AS0990-1	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-01-691-4730?

The FSCG of the NSN 4720-01-691-4730 is 4720

Does NSN 4720-01-691-4730 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 4720-01-691-4730 contain precious materials?

Item does not contain precious metal.

Does NSN 4720-01-691-4730 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 4720-01-691-4730 was assigned to the Federal Catalog?

It was assigned 5 years ago, on Tue, Oct 13, 2020