4B18-6-125
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A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.
0.0580 inches minimum and 0.0680 inches maximum flange width, 0.4980 inches minimum and 0.5000 inches maximum body outside diameter, 0.6150 inches minimum and 0.6350 inches maximum flange outside diameter, 0.3440 inches nominal body inside diameter, 0.3030 inches minimum and 0.3180 inches maximum overall length
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Overall Length
- 0.3030 inches minimum and 0.3180 inches maximum
- Body Outside Diameter
- 0.4980 inches minimum and 0.5000 inches maximum
- Body Inside Diameter
- 0.3440 inches nominal
- Flange Outside Diameter
- 0.6150 inches minimum and 0.6350 inches maximum
- Flange Width
- 0.0580 inches minimum and 0.0680 inches maximum
- Corner Shape
- square left flange body corner
- Corner Shape
- square left flange outside right corner
- Corner Shape
- square outside left corner
- Corner Shape
- square inside left corner
- Corner Shape
- square inside right corner
- Corner Shape
- square outside right corner
- Surface Finish
- 125.0 microinches left end surface of body and flange
- Surface Finish
- 250.0 microinches outside diameter surface of body
- Surface Finish
- 250.0 microinches inside diameter surface of body
- Surface Finish
- 250.0 microinches outside diameter surface of flange
- Surface Finish
- 250.0 microinches right end surface of body
- Surface Finish
- 250.0 microinches right end surface of left flange
- Material
- copper alloy 510 overall
- Surface Treatment
- cadmium 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 |
|---|---|
| 4B18-6-125 | Sleeve Bushing |
| LD137-0003-4125 | Sleeve Bushing |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 3120-00-524-3800?
Does the NSN 3120-00-524-3800 have a Schedule B code assigned?
Does NSN 3120-00-524-3800 require demilitarization?
Does NSN 3120-00-524-3800 contain precious materials?
Does NSN 3120-00-524-3800 contain hazardous materials?
When the NSN 3120-00-524-3800 was assigned to the Federal Catalog?
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