MS21025-39

View detailed technical data, stock status, and sourcing information for: MS21025-39
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-268-6035

Item Name Code

01854

Assigment Date

01/01/1963 (63 years ago)

right-hand thread direction, 2.859 inches minimum and 2.891 inches maximum width across flats, castellated, hexagon nut style, 3b thread class, 0.796 inches minimum and 0.828 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: 0.796 inches minimum and 0.828 inches maximum
Width Across Flats: 2.859 inches minimum and 2.891 inches maximum
Thread Series: uns
Thread Quantity Per Inch: 16
Hardness Rating: 30.0 rockwell c minimum and 34.0 rockwell c maximum
Nominal Thread Size: 2.438 inches
Countersink Angle: 110.0 degrees nominal nut
Bearing Surface Type: chamfered or washer faced
Material: steel comp 4140 or steel comp 8740 overall
Material Document And Classification: 66 fed std all material responses overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall
Nondefinitive Spec/Std Data: 5 type

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
5310PL1861666	Nut,plain,castellated,hexagon
G34-13	Nut,plain,castellated,hexagon
MS21025-39	Nut,plain,castellated,hexagon

FAQs

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

What is the FSCG of the NSN 5310-00-268-6035?

The FSCG of the NSN 5310-00-268-6035 is 5310

Does the NSN 5310-00-268-6035 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-268-6035 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 5310-00-268-6035 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-268-6035 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 5310-00-268-6035 was assigned to the Federal Catalog?

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