256NKS-(0.040)

View detailed technical data, stock status, and sourcing information for: 256NKS-(0.040)
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-820-8966

Item Name Code

01860

Assigment Date

01/01/1962 (64 years ago)

2b thread class, right-hand thread direction, clinch nut style, 0.038 inches maximum pilot length, 0.164 inches maximum pilot diameter

Product Characteristics

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

Thread Class: 2b
Thread Direction: right-hand
Pilot Diameter: 0.164 inches maximum
Pilot Length: 0.038 inches maximum
Nut Style: clinch
Nut Diameter: 0.250 inches nominal
Nut Height: 0.100 inches nominal
Thread Series: unc
Thread Quantity Per Inch: 56
Nominal Thread Size: 0.086 inches
Material: steel comp 303 overall
Material Document And Classification: aisi assn std single material response overall
Surface Treatment: passivate overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-01-067-3411	No Name Available	09/04/1991

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
02170-2	Clinch Plain Nut
18001B-SS-0256	Clinch Plain Nut
222085-000	Clinch Plain Nut
256NKS-(0.040)	Clinch Plain Nut
410817-201	Clinch Plain Nut
512951	Clinch Plain Nut
808014-2	Clinch Plain Nut
80814-2	Clinch Plain Nut
990288-2	Clinch Plain Nut
A02170-2	Clinch Plain Nut
CLS-256-1	Clinch Plain Nut
CLS256-1	Clinch Plain Nut
F52-220-16	Clinch Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-820-8966?

The FSCG of the NSN 5310-00-820-8966 is 5310

Does the NSN 5310-00-820-8966 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-820-8966 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 5310-00-820-8966 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-820-8966 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 5310-00-820-8966 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962