221-01-259

View detailed technical data, stock status, and sourcing information for: 221-01-259
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-726-3691

Item Name Code

13393

Assigment Date

02/21/1968 (58 years ago)

0.125 inches minimum and 0.127 inches maximum hole diameter, rectangular cross-sectional shape style, round center hole shape style, round peripheral shape style, 0.024 inches minimum and 0.026 inches maximum thickness

Product Characteristics

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

Cross-Sectional Shape Style: rectangular
Hole Diameter: 0.125 inches minimum and 0.127 inches maximum
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.024 inches minimum and 0.026 inches maximum
Overall Diameter: 0.187 inches nominal
Surface Finish: 63.0 microinches all surfaces
Heat Treatment: as fabricated
Material: steel comp 416 overall
Material Document And Classification: qq-s-763 fed spec single material response overall
Surface Treatment: passivate 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
221-01-259	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-00-726-3691?

The FSCG of the NSN 5310-00-726-3691 is 5310

Does the NSN 5310-00-726-3691 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-726-3691 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 5310-00-726-3691 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-726-3691 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 5310-00-726-3691 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, Feb 21, 1968