| CROSS-SECTIONAL SHAPE | HEXAGON |
| LEFT PROJECTION DIAMETER | 0.138 INCHES NOMINAL |
| LEFT PROJECTION LENGTH | 0.25 INCHES NOMINAL |
| LENGTH | 1.51 INCHES NOMINAL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD SIZE | 0.138 INCHES LEFT EXTERNAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SPACER, PRINTED WIRING BOARD |
| RIGHT PROJECTION DIAMETER | 0.200 INCHES MINIMUM AND 0.225 INCHES MAXIMUM |
| RIGHT PROJECTION LENGTH | 0.41 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.25 INCHES NOMINAL |
| STYLE DESIGNATOR | PROJECTION BOTH ENDS RIGHT EXTERNAL THREAD |
| THREAD CLASS | 2A LEFT EXTERNAL |
| THREAD DIRECTION | RIGHT-HAND LEFT EXTERNAL |
| THREAD LENGTH | 0.25 INCHES NOMINAL LEFT EXTERNAL |
| THREAD QUANTITY PER INCH | 32 LEFT EXTERNAL |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) LEFT EXTERNAL |