7521749

View detailed technical data, stock status, and sourcing information for: 7521749
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-00-285-5068

Item Name Code

04522

Assigment Date

01/01/1961 (65 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.

metal and metallic materials cross-sectional shape style, 4.688 inches nominal overall width, 4.438 inches nominal bolt circle diameter, 0.438 inches nominal hole diameter, 2.812 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.

Cross-Sectional Shape Style: metal and metallic materials
Hole Diameter: 0.438 inches nominal
Bolt Circle Diameter: 4.438 inches nominal
Overall Width: 4.688 inches nominal
Aperture Diameter: 2.812 inches nominal
Outside Corner Radius: 0.500 inches nominal
Side Radius From Bolt Circle: 4.250 inches nominal
Cross-Sectional Thickness: 0.079 inches minimum and 0.084 inches maximum
Bolt Hole Quantity: 3
Material: steel and lead and tin and asbestos overall
Material Document And Classification: qq-t-191 ty 1 cl 1 gr a or qq-t-425 ty 1 gr 1 cl a fed spec all material responses overall
Surface Treatment: lacquer or varnish overall
Style Designator: non-circular
Nondefinitive Spec/Std Data: 3 type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2990-00-752-1749	No Name Available	01/01/1962

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
529L2	Gasket
7521749	Gasket
913135	Gasket
MILG14243	Gasket

FAQs

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

What is the FSCG of the NSN 5330-00-285-5068?

The FSCG of the NSN 5330-00-285-5068 is 5330

Does NSN 5330-00-285-5068 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 5330-00-285-5068 contain precious materials?

Precious metal content is unknown

Does NSN 5330-00-285-5068 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 5330-00-285-5068 was assigned to the Federal Catalog?

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