176C1857

View detailed technical data, stock status, and sourcing information for: 176C1857
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-136-0186

Item Name Code

13205

Assigment Date

08/03/1982 (43 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.

0.5620 inches minimum and 0.5730 inches maximum overall length, 3.2513 inches minimum and 3.2519 inches maximum body outside diameter, 3.7150 inches minimum and 3.7350 inches maximum flange outside diameter, 2.9991 inches minimum and 3.0009 inches maximum body inside diameter, 0.1250 inches nominal flange width

Product Characteristics

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

Overall Length: 0.5620 inches minimum and 0.5730 inches maximum
Body Outside Diameter: 3.2513 inches minimum and 3.2519 inches maximum
Body Inside Diameter: 2.9991 inches minimum and 3.0009 inches maximum
Flange Outside Diameter: 3.7150 inches minimum and 3.7350 inches maximum
Flange Width: 0.1250 inches nominal
Corner Shape: chamfered inside left corner
Corner Shape: chamfered left flange outside right corner
Corner Shape: square left flange body corner
Corner Shape: square outside left corner
Corner Shape: square inside right corner
Corner Shape: square outside right corner
Hardness Rating: 33.0 rockwell c minimum and 38.0 rockwell c maximum overall
Material: steel comp 4140 overall
Style Designator: solid, external flange one end

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
176C1857	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-136-0186?

The FSCG of the NSN 3120-01-136-0186 is 3120

Does the NSN 3120-01-136-0186 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-01-136-0186 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 3120-01-136-0186 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-136-0186 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 3120-01-136-0186 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Tue, Aug 3, 1982