521495

View detailed technical data, stock status, and sourcing information for: 521495
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-00-291-4503

Item Name Code

04522

Assigment Date

01/01/1961 (65 years ago)

4.731 inches minimum and 4.741 inches maximum outside diameter, solid single or composition cross-sectional shape style, 85.0 shore durometer a minimum and 95.0 shore durometer a maximum overall hardness rating, 4.330 inches minimum and 4.340 inches maximum aperture diameter, 0.073 inches nominal cross-sectional thickness

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: solid single or composition
Outside Diameter: 4.731 inches minimum and 4.741 inches maximum
Aperture Diameter: 4.330 inches minimum and 4.340 inches maximum
Cross-Sectional Thickness: 0.073 inches nominal
Hardness Rating: 85.0 shore durometer a minimum and 95.0 shore durometer a maximum overall
Material: rubber synthetic overall
Style Designator: circular

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2805-00-358-2606	No Name Available	01/01/1963
2940-00-413-3319	No Name Available	01/01/1963
5330-00-605-5181	No Name Available	12/01/1975
5330-00-843-8017	No Name Available	12/01/1975

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
1A5889	Gasket
42862B	Gasket
4506161	Gasket
4506181-1	Gasket
521495	Gasket
T8483	Gasket
UFR10615	Gasket

FAQs

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

What is the FSCG of the NSN 5330-00-291-4503?

The FSCG of the NSN 5330-00-291-4503 is 5330

Does NSN 5330-00-291-4503 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 5330-00-291-4503 contain precious materials?

Precious metal content is unknown

Does NSN 5330-00-291-4503 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 5330-00-291-4503 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961