2640-901X6 PIECE 21

View detailed technical data, stock status, and sourcing information for: 2640-901X6 PIECE 21
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-01-192-8641

Item Name Code

47946

Assigment Date

10/26/1984 (41 years ago)

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.

3.969 inches minimum and 3.999 inches maximum center hole diameter, 160 maximum elongation percentage, 4.262 inches nominal outside diameter, 0.135 inches minimum and 0.143 inches maximum cross-sectional height, -65.0 fahrenheit and 275.0 fahrenheit temp rating

Product Characteristics

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

Outside Diameter: 4.262 inches nominal
Temp Rating: -65.0 fahrenheit and 275.0 fahrenheit
Cross-Sectional Height: 0.135 inches minimum and 0.143 inches maximum
Center Hole Diameter: 3.969 inches minimum and 3.999 inches maximum
Elongation Percentage: 160 maximum
Criticality Code Justification: adyt
Material: rubber butadiene-acrylonitrile class nbr

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5330-00-218-1826	No Name Available	08/01/1992

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
2640-901X6 PIECE 21	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-01-192-8641?

The FSCG of the NSN 5331-01-192-8641 is 5331

Does the NSN 5331-01-192-8641 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-01-192-8641 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 5331-01-192-8641 contain precious materials?

Item does not contain precious metal.

Does NSN 5331-01-192-8641 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 5331-01-192-8641 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Fri, Oct 26, 1984