TM643A

View detailed technical data, stock status, and sourcing information for: TM643A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-00-090-0694

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.

0.067 inches minimum and 0.073 inches maximum cross-sectional height, 1.600 inches nominal center hole diameter, rubber synthetic material

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: 0.067 inches minimum and 0.073 inches maximum
Center Hole Diameter: 1.600 inches nominal
Material: rubber synthetic

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5330-00-807-6303	No Name Available	12/01/1975

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
TM643A	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-00-090-0694?

The FSCG of the NSN 5331-00-090-0694 is 5331

Does the NSN 5331-00-090-0694 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-00-090-0694 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 5331-00-090-0694 contain precious materials?

Precious metal content is unknown

Does NSN 5331-00-090-0694 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 5331-00-090-0694 was assigned to the Federal Catalog?

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