7791663

View detailed technical data, stock status, and sourcing information for: 7791663
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-953-6340

Item Name Code

01857

Assigment Date

05/20/1966 (60 years ago)

hexagon nut style, 3b thread class, 0.260 inches minimum and 0.270 inches maximum nut height, right-hand thread direction, 0.365 inches minimum and 0.375 inches maximum width across flats

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Nut Style: hexagon
Nut Height: 0.260 inches minimum and 0.270 inches maximum
Width Across Flats: 0.365 inches minimum and 0.375 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 28
Hardness Rating: 30.0 rockwell c minimum and 36.0 rockwell c maximum
Nominal Thread Size: 0.250 inches
Countersink Angle: 90.0 degrees nominal nut
Bearing Surface Type: chamfered
Bearing Surface Finish: 125.0 microinches
Material: steel comp 8640 overall
Surface Treatment: phosphate 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
7791663	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-953-6340?

The FSCG of the NSN 5310-00-953-6340 is 5310

Does the NSN 5310-00-953-6340 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-953-6340 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 5310-00-953-6340 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-953-6340 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 5310-00-953-6340 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Fri, May 20, 1966