5331-01-121-5543

Find complete technical information, availability, and procurement data for: 5331-01-121-5543
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-01-121-5543

Item Name Code

47946

Assigment Date

11/06/1981 (44 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.

0.853 inches minimum and 0.865 inches maximum center hole diameter, zzzy criticality code justification, -20.0 fahrenheit and 300.0 fahrenheit temp rating, 0.135 inches minimum and 0.143 inches maximum cross-sectional height, 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.

Temp Rating: -20.0 fahrenheit and 300.0 fahrenheit
Cross-Sectional Height: 0.135 inches minimum and 0.143 inches maximum
Center Hole Diameter: 0.853 inches minimum and 0.865 inches maximum
Criticality Code Justification: zzzy
Material: rubber butadiene-acrylonitrile class nbr
Test Data Document: "81349-mil-p-23199 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Reference Number Differentiating Characteristics: as differentiated by material which must conform to ships parts control center special quality control provisions and certified free from mercury contamination

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
N0951 2-212	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-01-121-5543?

The FSCG of the NSN 5331-01-121-5543 is 5331

Does the NSN 5331-01-121-5543 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-01-121-5543 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 5331-01-121-5543 contain precious materials?

Item does not contain precious metal.

Does NSN 5331-01-121-5543 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 5331-01-121-5543 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Fri, Nov 6, 1981