2354987-502

View detailed technical data, stock status, and sourcing information for: 2354987-502
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-00-599-2978

Item Name Code

47946

Assigment Date

01/01/1963 (63 years ago)

A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes:felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes:cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.

0.205 inches minimum and 0.215 inches maximum cross-sectional height, 2.465 inches minimum and 2.485 inches maximum center hole diameter, rubber butadiene-acrylonitrile class nbr 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: 0.205 inches minimum and 0.215 inches maximum
Center Hole Diameter: 2.465 inches minimum and 2.485 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
2354987-502	O-Ring
MIL-STD-413	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-00-599-2978?

The FSCG of the NSN 5331-00-599-2978 is 5331

Does the NSN 5331-00-599-2978 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-00-599-2978 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 5331-00-599-2978 contain precious materials?

Item does not contain precious metal.

Does NSN 5331-00-599-2978 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 5331-00-599-2978 was assigned to the Federal Catalog?

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