8-21027

View detailed technical data, stock status, and sourcing information for: 8-21027
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-00-908-4893

Item Name Code

04522

Assigment Date

01/01/1960 (66 years ago)

A rigid or flexible item of various shapes attached to a structure for the purpose of providing access for inspection, service, replacement of components and/or adjustments or mounting operations. It is designed to be attached by means of bolt holes, slots, mounting ears, tabs, and the like. To permit access, the mounted cover requires partial or complete removal. It may include an observation window. For items permanently attached by hinges and the like, see door, access (as modified). Excludes:all covers not specifically designed to provide access for the purposes listed above.

5.630 inches nominal bolt circle diameter, 0.150 inches nominal hole diameter, 6.380 inches nominal outside diameter, 0.064 inches nominal cross-sectional thickness, 4.880 inches nominal aperture diameter

Product Characteristics

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

Hole Diameter: 0.150 inches nominal
Bolt Circle Diameter: 5.630 inches nominal
Outside Diameter: 6.380 inches nominal
Aperture Diameter: 4.880 inches nominal
Cross-Sectional Thickness: 0.064 inches nominal
Gage Ring Thickness: 0.032 inches nominal
Hardness Rating: 40.0 shore durometer a nominal overall
Material: rubber butadiene-acrylonitrile class nbr overall
Material Document And Classification: mil-s-6855,gr 40 mil spec single material response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
1560-00-673-4999	No Name Available	02/11/1973

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
8-21027	Gasket

FAQs

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

What is the FSCG of the NSN 5330-00-908-4893?

The FSCG of the NSN 5330-00-908-4893 is 5330

Does the NSN 5330-00-908-4893 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5330-00-908-4893 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 5330-00-908-4893 contain precious materials?

Precious metal content is unknown

Does NSN 5330-00-908-4893 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 5330-00-908-4893 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960