149T6978-8

View detailed technical data, stock status, and sourcing information for: 149T6978-8
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4710 Tube and Rigid Tubing Pipe

National Stock Number

4710-01-667-5250

Item Name Code

21989

Assigment Date

10/19/2017 (8 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.

4710-01-667-5250, metal tube assembly

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
149T6978-8	Metal Tube Assembly

FAQs

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

What is the FSCG of the NSN 4710-01-667-5250?

The FSCG of the NSN 4710-01-667-5250 is 4710

Does the NSN 4710-01-667-5250 have a Schedule B code assigned?

Yes, the Schedule B code is 8302494500

Does NSN 4710-01-667-5250 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4710-01-667-5250 contain precious materials?

Item does not contain precious metal.

Does NSN 4710-01-667-5250 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 4710-01-667-5250 was assigned to the Federal Catalog?

It was assigned 8 years ago, on Thu, Oct 19, 2017