CR21759

View detailed technical data, stock status, and sourcing information for: CR21759
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-01-283-4246

Item Name Code

04214

Assigment Date

08/05/1988 (37 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.

3.000 inches nominal housing bore diameter, 2.188 inches nominal accommodated shaft diameter, vertical sealing element style, square case style, 0.375 inches nominal seal width

Product Characteristics

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

Accommodated Shaft Diameter: 2.188 inches nominal
Seal Width: 0.375 inches nominal
Case Style: square
Housing Bore Diameter: 3.000 inches nominal
Sealing Element Style: vertical
Material: rubber butadiene-acrylonitrile class nbr sealing element
Material: steel case
Material: steel corrosion resisting spring

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
157806-254	Plain Encased Seal
CR21759	Plain Encased Seal

FAQs

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

What is the FSCG of the NSN 5330-01-283-4246?

The FSCG of the NSN 5330-01-283-4246 is 5330

Does the NSN 5330-01-283-4246 have a Schedule B code assigned?

Yes, the Schedule B code is 8484200000

Does NSN 5330-01-283-4246 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 5330-01-283-4246 contain precious materials?

Item does not contain precious metal.

Does NSN 5330-01-283-4246 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5330-01-283-4246 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Fri, Aug 5, 1988