7690-01-378-3946

Find complete technical information, availability, and procurement data for: 7690-01-378-3946
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Federal Supply Group

Books, Maps, and Other Publications

Federal Supply Classification

7690 Miscellaneous Printed Matter

National Stock Number

7690-01-378-3946

Item Name Code

25860

Assigment Date

08/12/1993 (33 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.

0.500 inches nominal width, 0.500 inches nominal length, singular usage form, square basic shape style, legend marking designation

Product Characteristics

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

Width: 0.500 inches nominal
Length: 0.500 inches nominal
Basic Shape Style: square
Usage Form: singular
Marking Designation: legend
Inscription: partial legend166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 single side
Criticality Code Justification: aybm
Special Features: mini-marker card
Material: plastic vinyl

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
WC166-198MIN	Identification Marker

FAQs

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

What is the FSCG of the NSN 7690-01-378-3946?

The FSCG of the NSN 7690-01-378-3946 is 7690

Does the NSN 7690-01-378-3946 have a Schedule B code assigned?

Yes, the Schedule B code is 4911990000

Does NSN 7690-01-378-3946 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 7690-01-378-3946 contain precious materials?

Item does not contain precious metal.

Does NSN 7690-01-378-3946 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 7690-01-378-3946 was assigned to the Federal Catalog?

It was assigned 33 years ago, on Thu, Aug 12, 1993