National Aerospace Standard - Bushing - NAS77-3-023
Standard Part
Description: Bushing
Part Number: NAS77-3-023
Item Description
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.
Features and Characteristics
| Overall Length | : | Between 0.2820 inches and 0.2970 inches |
| Body Outside Diameter | : | Between 0.3131 inches and 0.3136 inches |
| Body Inside Diameter | : | Between 0.1900 inches and 0.1915 inches |
| Flange Outside Diameter | : | Between 0.4270 inches and 0.4470 inches |
| Flange Width | : | Between 0.0570 inches and 0.0620 inches |
| Corner Shape | : | Undercut left flange body corner |
| Surface Finish | : | 100.0 microinches intermediate layer |
| Material | : | Steel comp 8630 or steel comp 4130 |
| Material Specification | : | Mil-s-6050 military specification 1st material response or mil-s-6758 military specification 2nd material response |
| Surface Treatment | : | Cadmium |
| Surface Treatment Specification | : | Qq-p-416, type 2, cl 2 federal specification single treatment response |
| Style Designator | : | Solid, external flange one end |
| Specification Data | : | 80205-nas77 professional/industrial association standard |
| FSC | : | 3120 Unmounted Plain Bearings |
| NIIN | : | 005555902 |
| NSN | : | 3120005555902 |