A53960

View detailed technical data, stock status, and sourcing information for: A53960
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-00-559-8760

Item Name Code

04521

Assigment Date

01/01/1963 (63 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.

0.485 inches minimum and 0.515 inches maximum cross-sectional height, 6.985 inches minimum and 7.015 inches maximum center hole diameter, u cross-sectional shape style, 68.0 shore durometer a nominal overall hardness rating, 7.985 inches minimum and 8.015 inches maximum peripheral diameter

Product Characteristics

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

Cross-Sectional Shape Style: u
Cross-Sectional Height: 0.485 inches minimum and 0.515 inches maximum
Center Hole Diameter: 6.985 inches minimum and 7.015 inches maximum
Peripheral Diameter: 7.985 inches minimum and 8.015 inches maximum
Hardness Rating: 68.0 shore durometer a nominal overall
Material: rubber butadiene-acrylonitrile class nbr overall
Material Document And Classification: mil-p-5516,cl b mil spec single material response overall

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
A53960	Preformed Packing
S16-12-700-1070W	Preformed Packing

FAQs

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

What is the FSCG of the NSN 5330-00-559-8760?

The FSCG of the NSN 5330-00-559-8760 is 5330

Does the NSN 5330-00-559-8760 have a Schedule B code assigned?

Yes, the Schedule B code is 3926904500

Does NSN 5330-00-559-8760 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 5330-00-559-8760 contain precious materials?

Precious metal content is unknown

Does NSN 5330-00-559-8760 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 5330-00-559-8760 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963