S-256-1C

View detailed technical data, stock status, and sourcing information for: S-256-1C
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-011-9693

Item Name Code

01860

Assigment Date

11/02/1975 (50 years ago)

0.033 inches minimum and 0.038 inches maximum pilot length, 2b thread class, 0.161 inches minimum and 0.164 inches maximum pilot diameter, right-hand thread direction, clinch nut style

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: 0.161 inches minimum and 0.164 inches maximum
Pilot Length: 0.033 inches minimum and 0.038 inches maximum
Nut Style: clinch
Nut Diameter: 0.235 inches minimum and 0.265 inches maximum
Nut Height: 0.080 inches minimum and 0.115 inches maximum
Thread Series: unc
Thread Quantity Per Inch: 56
Hardness Rating: 35.0 rockwell c maximum
Nominal Thread Size: 0.086 inches
Material: steel 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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-181-6778	No Name Available	03/01/1990
5310-00-801-8544	No Name Available	08/09/1991

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
0405-01	Clinch Plain Nut
0405-1	Clinch Plain Nut
10086-001	Clinch Plain Nut
334-0549-000	Clinch Plain Nut
M45938/1-2	Clinch Plain Nut
S-256-1C	Clinch Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-011-9693?

The FSCG of the NSN 5310-01-011-9693 is 5310

Does the NSN 5310-01-011-9693 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-011-9693 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 5310-01-011-9693 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-011-9693 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 5310-01-011-9693 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sun, Nov 2, 1975