5331-01-025-1904

Find complete technical information, availability, and procurement data for: 5331-01-025-1904
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-01-025-1904

Item Name Code

47946

Assigment Date

07/28/1976 (50 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, 70.0 shore durometer a nominal hardness rating, 160 maximum elongation percentage, 5.145 inches nominal outside diameter, 4.710 inches minimum and 4.740 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: 5.145 inches nominal
Cross-Sectional Height: 0.205 inches minimum and 0.215 inches maximum
Center Hole Diameter: 4.710 inches minimum and 4.740 inches maximum
Elongation Percentage: 160 maximum
Hardness Rating: 70.0 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
2-351 N304-75	O-Ring
MS28775-351	O-Ring
PRP568-351-4067-70	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-01-025-1904?

The FSCG of the NSN 5331-01-025-1904 is 5331

Does the NSN 5331-01-025-1904 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-01-025-1904 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 5331-01-025-1904 contain precious materials?

Item does not contain precious metal.

Does NSN 5331-01-025-1904 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 5331-01-025-1904 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Wed, Jul 28, 1976