2640-405X3 PC9
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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.
round center hole shape style, 0.8690 inches minimum and 0.8740 inches maximum outside diameter, 0.0610 inches minimum and 0.0630 inches maximum overall thickness, rectangular cross-sectional shape style, 0.6250 inches minimum and 0.6290 inches maximum diameter
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
- rectangular
- Outside Diameter
- 0.8690 inches minimum and 0.8740 inches maximum
- Center Hole Shape Style
- round
- Diameter
- 0.6250 inches minimum and 0.6290 inches maximum
- Overall Thickness
- 0.0610 inches minimum and 0.0630 inches maximum
- Corner Shape
- square all corners
- Surface Finish
- 63.0 microinches overall
- Material
- lubricant lubrication
- Material
- plastic overall
- Style Designator
- round
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 3120-00-323-2750 | No Name Available | 11/01/1985 |
| 3120-01-162-4793 | No Name Available | 02/01/1985 |
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 |
|---|---|
| 255751PC19 | Thrust Washer Bearing |
| 255753PC19 | Thrust Washer Bearing |
| 2640-405X3 PC9 | Thrust Washer Bearing |
| 845-2050967 PC9 | Thrust Washer Bearing |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 3120-01-075-7220?
Does the NSN 3120-01-075-7220 have a Schedule B code assigned?
Does NSN 3120-01-075-7220 require demilitarization?
Does NSN 3120-01-075-7220 contain precious materials?
Does NSN 3120-01-075-7220 contain hazardous materials?
When the NSN 3120-01-075-7220 was assigned to the Federal Catalog?
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Pricing
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