7790850

View detailed technical data, stock status, and sourcing information for: 7790850
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-739-4190

Item Name Code

15933

Assigment Date

01/01/1961 (65 years ago)

0.515 inches nominal recess diameter, 0.110 inches minimum and 0.115 inches maximum material thickness, 0.570 inches minimum and 0.610 inches maximum outside diameter, 0.395 inches minimum and 0.400 inches maximum hole diameter, 0.060 inches minimum and 0.070 inches maximum recess depth

Product Characteristics

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

Hole Diameter: 0.395 inches minimum and 0.400 inches maximum
Outside Diameter: 0.570 inches minimum and 0.610 inches maximum
Recess Diameter: 0.515 inches nominal
Recess Depth: 0.060 inches minimum and 0.070 inches maximum
Material Thickness: 0.110 inches minimum and 0.115 inches maximum
Hardness Rating: 33.0 rockwell c minimum and 38.0 rockwell c maximum
Surface Finish: 125.0 microinches all surfaces
Material: steel comp 4140 overall
Material Document And Classification: qq-s-624 fed spec single material response overall
Surface Treatment: phosphate overall
Surface Treatment Document And Classification: mil-p-16232 mil spec single treatment response overall
Style Designator: recessed

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
7790850	Recessed Washer

FAQs

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

What is the FSCG of the NSN 5310-00-739-4190?

The FSCG of the NSN 5310-00-739-4190 is 5310

Does the NSN 5310-00-739-4190 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-739-4190 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 5310-00-739-4190 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-739-4190 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 5310-00-739-4190 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961