NM304 3-905

View detailed technical data, stock status, and sourcing information for: NM304 3-905
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-01-245-9567

Item Name Code

47946

Assigment Date

12/06/1986 (39 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.

0.547 inches minimum and 0.569 inches maximum outside diameter, 0.409 inches minimum and 0.419 inches maximum center hole diameter, -65.0 fahrenheit and 225.0 fahrenheit temp rating, 0.069 inches minimum and 0.075 inches maximum cross-sectional height, 75.0 shore durometer a nominal hardness 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: 0.547 inches minimum and 0.569 inches maximum
Temp Rating: -65.0 fahrenheit and 225.0 fahrenheit
Cross-Sectional Height: 0.069 inches minimum and 0.075 inches maximum
Center Hole Diameter: 0.409 inches minimum and 0.419 inches maximum
Hardness Rating: 75.0 shore durometer a nominal
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
192710	O-Ring
3-905N304-75	O-Ring
NM304 3-905	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-01-245-9567?

The FSCG of the NSN 5331-01-245-9567 is 5331

Does NSN 5331-01-245-9567 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 5331-01-245-9567 contain precious materials?

Item does not contain precious metal.

Does NSN 5331-01-245-9567 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 5331-01-245-9567 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Sat, Dec 6, 1986