RT253-65-178

View detailed technical data, stock status, and sourcing information for: RT253-65-178
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-00-137-3120

Item Name Code

47946

Assigment Date

07/30/1971 (55 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.

200 maximum elongation percentage, 0.100 inches minimum and 0.106 inches maximum cross-sectional height, 65.0 shore durometer a nominal hardness rating, 9.943 inches nominal outside diameter, 9.707 inches minimum and 9.767 inches maximum center hole diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Outside Diameter: 9.943 inches nominal
Cross-Sectional Height: 0.100 inches minimum and 0.106 inches maximum
Center Hole Diameter: 9.707 inches minimum and 9.767 inches maximum
Elongation Percentage: 200 maximum
Hardness Rating: 65.0 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
10V60-141-178	O-Ring
1793-178	O-Ring
2-178 N602-70	O-Ring
2-178N602-70	O-Ring
457-60-178	O-Ring
725-70-178	O-Ring
7866-178	O-Ring
C-69-178	O-Ring
MS29513-178	O-Ring
PRP568-178-457-60	O-Ring
PX1775-178	O-Ring
RT253-65-178	O-Ring
SR-822A-6-178	O-Ring
SR-822A-60-178	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-00-137-3120?

The FSCG of the NSN 5331-00-137-3120 is 5331

Does the NSN 5331-00-137-3120 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-00-137-3120 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 5331-00-137-3120 contain precious materials?

Item does not contain precious metal.

Does NSN 5331-00-137-3120 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 5331-00-137-3120 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Fri, Jul 30, 1971