SCH309-7840806

View detailed technical data, stock status, and sourcing information for: SCH309-7840806
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-857-3386

Item Name Code

03263

Assigment Date

01/01/1962 (64 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.

1.459 inches nominal width, straight shank style, 0.187 inches nominal inside diameter, 0.500 inches nominal overall depth, 1 setscrew hole quantity

Product Characteristics

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

Inside Diameter: 0.187 inches nominal
Shank Style: straight
Setscrew Hole Quantity: 1
Overall Depth: 0.500 inches nominal
Width: 1.459 inches nominal
Gripping Surface Condition: grip aid
Shaft Accommodation Style: round
Attachment Method: setscrews
Overall Thickness: 1.487 inches nominal
Screw Drive Type: hexagon socket
Color: black
Style Designator: round with crank

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
P25497A	Knob
SCH309-7840806	Knob

FAQs

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

What is the FSCG of the NSN 5355-00-857-3386?

The FSCG of the NSN 5355-00-857-3386 is 5355

Does the NSN 5355-00-857-3386 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-857-3386 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 5355-00-857-3386 contain precious materials?

Precious metal content is unknown

Does NSN 5355-00-857-3386 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 5355-00-857-3386 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962