879-026C

View detailed technical data, stock status, and sourcing information for: 879-026C
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-268-6042

Item Name Code

01857

Assigment Date

01/01/1963 (63 years ago)

right-hand thread direction, hexagon nut style, 0.256 inches minimum and 0.276 inches maximum nut height, 0.492 inches minimum and 0.502 inches maximum width across flats, 3b thread class

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: 0.256 inches minimum and 0.276 inches maximum
Width Across Flats: 0.492 inches minimum and 0.502 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 24
Hardness Rating: 19.0 rockwell c minimum and 26.0 rockwell c maximum
Nominal Thread Size: 0.312 inches
Countersink Angle: 85.0 degrees minimum and 95.0 degrees maximum nut
Criticality Code Justification: feat
Bearing Surface Type: washer faced
Bearing Surface Finish: 63.0 microinches
Special Features: critical features,tolerances,fit restrictions,material properties and manufacturing process
Material: steel comp 8740 overall
Material Document And Classification: ams 6322 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: ams 2400 assn std single treatment response 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
879-026C	Hexagon Plain Nut
AN121503	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-268-6042?

The FSCG of the NSN 5310-00-268-6042 is 5310

Does the NSN 5310-00-268-6042 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-268-6042 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 5310-00-268-6042 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-268-6042 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 5310-00-268-6042 was assigned to the Federal Catalog?

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