340-8350001

View detailed technical data, stock status, and sourcing information for: 340-8350001
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-639-5242

Item Name Code

01854

Assigment Date

01/01/1963 (63 years ago)

3b thread class, 0.750 inches nominal width across flats, right-hand thread direction, castellated, hexagon nut style, 0.365 inches minimum and 0.385 inches maximum nut height

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: castellated, hexagon
Nut Height: 0.365 inches minimum and 0.385 inches maximum
Width Across Flats: 0.750 inches nominal
Thread Series: unf
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.438 inches
Countersink Angle: 109.5 degrees minimum and 110.5 degrees maximum nut
Bearing Surface Type: chamfered or washer faced
Bearing Surface Finish: 125.0 microinches
Part Name Assigned By Controlling Agency: navy special project
Material: steel comp 4140 overall
Material Document And Classification: mil-s-5626 mil spec single material response overall
Surface Treatment: cadmium overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-600-0451	No Name Available	01/01/1963

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
340-8350001	Nut,plain,castellated,hexagon

FAQs

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

What is the FSCG of the NSN 5310-00-639-5242?

The FSCG of the NSN 5310-00-639-5242 is 5310

Does the NSN 5310-00-639-5242 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-639-5242 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 5310-00-639-5242 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-639-5242 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 5310-00-639-5242 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963