3-6955

View detailed technical data, stock status, and sourcing information for: 3-6955
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-00-937-5687

Item Name Code

21205

Assigment Date

01/11/1967 (59 years ago)

expanding concentric ring style, 3.500 inches minimum and 3.502 inches maximum outside diameter, 0.1240 inches minimum and 0.1250 inches maximum overall width, plain rectangular, straight face cross-sectional shape style, 0.1250 inches nominal radial wall 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: plain rectangular, straight face
Outside Diameter: 3.500 inches minimum and 3.502 inches maximum
Ring Style: expanding concentric
Radial Wall Thickness: 0.1250 inches nominal
Overall Width: 0.1240 inches minimum and 0.1250 inches maximum
Joint Style: vertical joint
Metallic Hardness Rating: 217.0 minimum brinell hultgren and 248.0 maximum brinell hultgren
Criticality Code Justification: acxj and abkv
Material: copper alloy 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
3-6955	Metal Seal Ring
8432804	Metal Seal Ring

FAQs

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

What is the FSCG of the NSN 5330-00-937-5687?

The FSCG of the NSN 5330-00-937-5687 is 5330

Does the NSN 5330-00-937-5687 have a Schedule B code assigned?

Yes, the Schedule B code is 3926904500

Does NSN 5330-00-937-5687 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 5330-00-937-5687 contain precious materials?

Item does not contain precious metal.

Does NSN 5330-00-937-5687 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 5330-00-937-5687 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Jan 11, 1967