C6639

View detailed technical data, stock status, and sourcing information for: C6639
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-01-181-4054

Item Name Code

04522

Assigment Date

06/09/1984 (42 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.

3.120 inches nominal bolt circle diameter, 3.470 inches nominal aperture diameter, 2.000 inches minimum and 2.020 inches maximum side radius from gasket center, 0.361 inches minimum and 0.375 inches maximum hole diameter, 0.420 inches minimum and 0.460 inches maximum outside corner radius

Product Characteristics

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

Hole Diameter: 0.361 inches minimum and 0.375 inches maximum
Bolt Circle Diameter: 3.120 inches nominal
Aperture Diameter: 3.470 inches nominal
Outside Corner Radius: 0.420 inches minimum and 0.460 inches maximum
Side Radius From Gasket Center: 2.000 inches minimum and 2.020 inches maximum
Cross-Sectional Thickness: 0.125 inches nominal
Gage Ring Thickness: 0.098 inches minimum and 0.102 inches maximum
Bolt Hole Quantity: 4
Material: nickel alloy insert
Material: steel comp 321 or steel comp 347 retainer
Material Document And Classification: ams 5542 assn std 1st material response or ams 5582 assn std 2nd material response or ams 5598 assn std 3rd material response insert
Material Document And Classification: ams 5510 assn std 1st material response or ams 5512 assn std 2nd material response retainer

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
9969M62	Gasket
9969M6201	Gasket
9969M62P02	Gasket
C6639	Gasket

FAQs

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

What is the FSCG of the NSN 5330-01-181-4054?

The FSCG of the NSN 5330-01-181-4054 is 5330

Does the NSN 5330-01-181-4054 have a Schedule B code assigned?

Yes, the Schedule B code is 7326190000

Does NSN 5330-01-181-4054 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 5330-01-181-4054 contain precious materials?

Item does not contain precious metal.

Does NSN 5330-01-181-4054 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 5330-01-181-4054 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, Jun 9, 1984