2556780

View detailed technical data, stock status, and sourcing information for: 2556780
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-00-421-4381

Item Name Code

47946

Assigment Date

12/09/1970 (55 years ago)

3.780 inches minimum and 3.810 inches maximum center hole diameter, rubber butadiene-acrylonitrile class nbr material, 0.100 inches minimum and 0.106 inches maximum cross-sectional height

Product Characteristics

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

Cross-Sectional Height: 0.100 inches minimum and 0.106 inches maximum
Center Hole Diameter: 3.780 inches minimum and 3.810 inches maximum
Material: rubber butadiene-acrylonitrile class nbr

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
2556780	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-00-421-4381?

The FSCG of the NSN 5331-00-421-4381 is 5331

Does the NSN 5331-00-421-4381 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-00-421-4381 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 5331-00-421-4381 contain precious materials?

Precious metal content is unknown

Does NSN 5331-00-421-4381 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 5331-00-421-4381 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Dec 9, 1970