1S668

View detailed technical data, stock status, and sourcing information for: 1S668
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-00-953-1624

Item Name Code

13706

Assigment Date

05/11/1966 (60 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

2.881 inches nominal center hole diameter, 0.050 inches nominal cross-sectional height, v cross-sectional shape style, 3.117 inches nominal peripheral diameter, rubber synthetic overall material

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: v
Cross-Sectional Height: 0.050 inches nominal
Center Hole Diameter: 2.881 inches nominal
Peripheral Diameter: 3.117 inches nominal
Material: rubber synthetic overall
Material Document And Classification: n382-9,fscm 02697 mfr ref 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Below is a list of NSNs that have been officially superseded by this NSN: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
5365-01-068-6111	No Name Available	08/01/1989

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
1S668	Packing Retainer

FAQs

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

What is the FSCG of the NSN 5330-00-953-1624?

The FSCG of the NSN 5330-00-953-1624 is 5330

Does the NSN 5330-00-953-1624 have a Schedule B code assigned?

Yes, the Schedule B code is 3926904500

Does NSN 5330-00-953-1624 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 5330-00-953-1624 contain precious materials?

Item does not contain precious metal.

Does NSN 5330-00-953-1624 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 5330-00-953-1624 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Wed, May 11, 1966