5310-01-343-1770

Find complete technical information, availability, and procurement data for: 5310-01-343-1770
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-343-1770

Item Name Code

15887

Assigment Date

08/07/1991 (34 years ago)

An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also locknut, pipe; nut (1), tube coupling and nut (1), plain, hexagon.

round nut style, 2.260 inches nominal nut diameter, 0.570 inches nominal nut thickness, 2b thread class, right-hand thread direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2b
Thread Direction: right-hand
Nut Style: round
Nut Diameter: 2.260 inches nominal
Nut Thickness: 0.570 inches nominal
End Item Identification: m119a1 howitzer
Width Across Flats: 1.945 inches nominal
Thread Series: un
Thread Quantity Per Inch: 20
Hardness Rating: 25.0 rockwell c minimum and 30.0 rockwell c maximum
Nominal Thread Size: 1.625 inches
Material: steel overall

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
12592315	Round Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-343-1770?

The FSCG of the NSN 5310-01-343-1770 is 5310

Does the NSN 5310-01-343-1770 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-343-1770 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 5310-01-343-1770 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-343-1770 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 5310-01-343-1770 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Wed, Aug 7, 1991