5331-00-256-3081

Find complete technical information, availability, and procurement data for: 5331-00-256-3081
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-00-256-3081

Item Name Code

47946

Assigment Date

03/15/1971 (55 years ago)

A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes:flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes:disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.

0.135 inches minimum and 0.143 inches maximum cross-sectional height, 1.228 inches minimum and 1.240 inches maximum center hole diameter, rubber synthetic material

Product Characteristics

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

Cross-Sectional Height: 0.135 inches minimum and 0.143 inches maximum
Center Hole Diameter: 1.228 inches minimum and 1.240 inches maximum
Material: rubber synthetic

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
000-21800MG	O-Ring
2532499-218	O-Ring
ARP218-9250	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-00-256-3081?

The FSCG of the NSN 5331-00-256-3081 is 5331

Does the NSN 5331-00-256-3081 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-00-256-3081 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 5331-00-256-3081 contain precious materials?

Precious metal content is unknown

Does NSN 5331-00-256-3081 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 5331-00-256-3081 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Mon, Mar 15, 1971