SP321

View detailed technical data, stock status, and sourcing information for: SP321
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-00-285-9785

Item Name Code

47946

Assigment Date

01/01/1963 (63 years ago)

70.0 shore durometer a nominal hardness rating, rubber butadiene-acrylonitrile class nbr material, 3.344 inches minimum and 3.374 inches maximum center hole diameter, 3.637 inches nominal outside diameter, 0.135 inches minimum and 0.143 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: 3.637 inches nominal
Cross-Sectional Height: 0.135 inches minimum and 0.143 inches maximum
Center Hole Diameter: 3.344 inches minimum and 3.374 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Below is a list of NSNs that have been officially superseded by this NSN: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
5330-00-118-0232	No Name Available	03/01/1985
3655-00-614-8599	No Name Available	01/01/1961

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
859674	O-Ring
AN123997	O-Ring
AN123997ES	O-Ring
AS3569-237	O-Ring
SP321	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-00-285-9785?

The FSCG of the NSN 5331-00-285-9785 is 5331

Does the NSN 5331-00-285-9785 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-00-285-9785 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 5331-00-285-9785 contain precious materials?

Item does not contain precious metal.

Does NSN 5331-00-285-9785 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 5331-00-285-9785 was assigned to the Federal Catalog?

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