634A204-2

View detailed technical data, stock status, and sourcing information for: 634A204-2
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-01-227-8685

Item Name Code

37840

Assigment Date

03/11/1986 (40 years ago)

A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use disk, solid, plain. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see spacer, plate; washer, flat and spacer, ring. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also shim stock, laminated; shim stock assortment, gasket; and bearing, washer, thrust.

metal winding w/ soft filler and inner and outer rings cross-sectional shape style, 11.875 inches nominal gage ring outside diameter, 8.125 inches nominal aperture diameter, 10.875 inches nominal outside diameter, 0.750 inches nominal bearing surface width

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: metal winding w/ soft filler and inner and outer rings
Outside Diameter: 10.875 inches nominal
Aperture Diameter: 8.125 inches nominal
Bearing Surface Width: 0.750 inches nominal
Gage Ring Outside Diameter: 11.875 inches nominal
Cross-Sectional Thickness: 0.170 inches minimum and 0.180 inches maximum
Gage Ring Thickness: 0.119 inches minimum and 0.131 inches maximum
Special Features: outer ring is low carbon steel
Material: steel comp 321 and steel overall
Style Designator: circular

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
3207647 PIECE 2	Spiral Wound Gasket
634A204-2	Spiral Wound Gasket
634A204P.2	Spiral Wound Gasket

FAQs

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

What is the FSCG of the NSN 5330-01-227-8685?

The FSCG of the NSN 5330-01-227-8685 is 5330

Does NSN 5330-01-227-8685 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 5330-01-227-8685 contain precious materials?

Item does not contain precious metal.

Does NSN 5330-01-227-8685 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 5330-01-227-8685 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Tue, Mar 11, 1986