| CROSS-SECTIONAL SHAPE | HEXAGON |
| LENGTH | 80.0 MILLIMETERS NOMINAL |
| MATERIAL | STEEL OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SPACER, SEN-DURE COOLER MTG |
| PROPRIETARY CHARACTERISTICS | NPAC |
| NOMINAL THREAD SIZE | 8.0 MILLIMETERS LEFT INTERNAL (INCLUDES THRU THREAD) |
| NOMINAL THREAD SIZE | 8.0 MILLIMETERS RIGHT INTERNAL |
| WIDTH ACROSS FLATS | 19.05 MILLIMETERS NOMINAL |
| STYLE DESIGNATOR | LEFT INTERNAL AND RIGHT INTERNAL THREADS |
| THREAD CLASS | 6H LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD CLASS | 6H RIGHT INTERNAL |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD DIRECTION | RIGHT-HAND RIGHT INTERNAL |
| THREAD LENGTH | 27.0 MILLIMETERS NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD LENGTH | 27.0 MILLIMETERS NOMINAL RIGHT INTERNAL |
| THREAD SERIES DESIGNATOR | M RIGHT INTERNAL |
| THREAD SERIES DESIGNATOR | M LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD PITCH IN MILLIMETERS | 1.25 RIGHT INTERNAL |
| THREAD PITCH IN MILLIMETERS | 1.25 LEFT INTERNAL (INCLUDES THRU THREAD) |