28-21-8453
View detailed technical data, stock status, and sourcing information for: 28-21-8453
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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.
hatch,25in lower bridge access end item identification, 2.0000 inches nominal overall length, 0.4900 inches minimum and 0.5000 inches maximum flange width, 1.7380 inches minimum and 1.7390 inches maximum body outside diameter, 1.1210 inches minimum and 1.1230 inches maximum body inside diameter
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Overall Length
- 2.0000 inches nominal
- Body Outside Diameter
- 1.7380 inches minimum and 1.7390 inches maximum
- Body Inside Diameter
- 1.1210 inches minimum and 1.1230 inches maximum
- End Item Identification
- hatch,25in lower bridge access
- Flange Width
- 0.4900 inches minimum and 0.5000 inches maximum
- Corner Shape
- chamfered outside right corner
- Corner Shape
- round inside left corner
- Corner Shape
- square left flange outside right corner
- Corner Shape
- square outside left corner
- Criticality Code Justification
- zzzy
- Surface Finish
- 63.0 microinches inside diameter surface of body
- Surface Finish
- 63.0 microinches outside diameter surface of body
- Material
- bronze overall
- Material Document And Classification
- qq-c-390 fed spec single material response overall
- Style Designator
- solid, external flange one end
- Reference Number Differentiating Characteristics
- quality control in accordance with navships 0948-045-7010 material identification and control instruction for level 1 items
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 |
|---|---|
| 123-4775355 ITEM 10 | Sleeve Bushing |
| 123-4775355 ITEM 10L1 | Sleeve Bushing |
| 28-21-8453 | Sleeve Bushing |
| 28-21-8453L1 | Sleeve Bushing |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 3120-01-356-4526?
Does the NSN 3120-01-356-4526 have a Schedule B code assigned?
Does NSN 3120-01-356-4526 require demilitarization?
Does NSN 3120-01-356-4526 contain precious materials?
Does NSN 3120-01-356-4526 contain hazardous materials?
When the NSN 3120-01-356-4526 was assigned to the Federal Catalog?
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