U6988

View detailed technical data, stock status, and sourcing information for: U6988
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-00-291-3300

Item Name Code

47946

Assigment Date

01/01/1963 (63 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.

0.348 inches nominal outside diameter, 0.203 inches minimum and 0.213 inches maximum center hole diameter, 70.0 shore durometer a nominal hardness rating, rubber butadiene-acrylonitrile class nbr material, 0.067 inches minimum and 0.073 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.

Outside Diameter: 0.348 inches nominal
Cross-Sectional Height: 0.067 inches minimum and 0.073 inches maximum
Center Hole Diameter: 0.203 inches minimum and 0.213 inches maximum
Hardness Rating: 70.0 shore durometer a nominal
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Below is a list of NSNs that have been officially superseded by this NSN: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
5330-00-515-3894	No Name Available	01/01/1963
5330-00-599-7970	No Name Available	09/24/1969

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
4160500-404	O-Ring
AN123959	O-Ring
AS3569-009	O-Ring
U6988	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-00-291-3300?

The FSCG of the NSN 5331-00-291-3300 is 5331

Does the NSN 5331-00-291-3300 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-00-291-3300 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 5331-00-291-3300 contain precious materials?

Precious metal content is unknown

Does NSN 5331-00-291-3300 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 5331-00-291-3300 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963