3-18 Thrust Washer Bearing

Comprehensive specifications and application details for: 3-18 Thrust Washer Bearing.

Summary

Explore detailed summary information for bearing: 3-18. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 3-18
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-776-2807
Item Name Code: 13211
Federal Item Identification Guide: A045A0
Assigment Date: 01/01/1962

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes:straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

4 center hole keyway quantity, 0.1328 inches nominal center hole key length, 0.5000 inches nominal center hole key width, square all corners corner shape, round w/key center hole shape style

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-776-2807 . Find dimensions, materials, tolerances, performance characteristics, etc.

Center Hole Key Width: 0.5000 inches nominal
Center Hole Key Length: 0.1328 inches nominal
Center Hole Keyway Quantity: 4
Center Hole Shape Style: round w/key
Corner Shape: square all corners
Cross-Sectional Shape Style: rectangular
Diameter: 1.3594 inches nominal
Keyway Radius: 0.1562 inches nominal
Keyway Quantity: 4
Lubrication Feature: groove flat bearing surface
Lubrication Feature: groove flat unfinished surface
Outside Diameter: 2.3125 inches nominal
Overall Thickness: 0.0610 inches minimum and 0.0630 inches maximum
Material: copper alloy 544 overall
Washer Keyway Depth: 0.0625 inches nominal
Style Designator: round w/keyways

Frequently Asked Questions

Find quick answers to common questions about bearing: 3-18. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-776-2807?: The FSCG of the NSN 3120-00-776-2807 is 3120

Does the NSN 3120-00-776-2807 have a Schedule B code assigned?: Yes, the Schedule B code is 8482105008

Does NSN 3120-00-776-2807 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 3120-00-776-2807 contain precious materials?: Precious metal content is unknown

Does NSN 3120-00-776-2807 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.