5331-01-371-5166

Find complete technical information, availability, and procurement data for: 5331-01-371-5166
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-01-371-5166

Item Name Code

47946

Assigment Date

02/17/1993 (33 years ago)

A relatively thin metallic item, having a concave or cupped contour, designed to effect its own seal by compression against the circumference of a hole. It is used as a blowout plug in boilers, engines, and the like to relieve the pressure created by the expansion of fluids caused by heat or freezing.

0.135 inches minimum and 0.143 inches maximum cross-sectional height, 75.0 shore durometer a minimum and 85.0 shore durometer a maximum hardness rating, -70.0 fahrenheit and 400.0 fahrenheit temp rating, rubber ethylene-propylene class epm material, 19.860 inches minimum and 20.060 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.

Temp Rating: -70.0 fahrenheit and 400.0 fahrenheit
Cross-Sectional Height: 0.135 inches minimum and 0.143 inches maximum
Center Hole Diameter: 19.860 inches minimum and 20.060 inches maximum
Hardness Rating: 75.0 shore durometer a minimum and 85.0 shore durometer a maximum
Material: rubber ethylene-propylene class epm

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
12918565-3	O-Ring
5-950E515-80	O-Ring
EM163 5-950	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-01-371-5166?

The FSCG of the NSN 5331-01-371-5166 is 5331

Does the NSN 5331-01-371-5166 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-01-371-5166 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 5331-01-371-5166 contain precious materials?

Item does not contain precious metal.

Does NSN 5331-01-371-5166 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 5331-01-371-5166 was assigned to the Federal Catalog?

It was assigned 33 years ago, on Wed, Feb 17, 1993