| CROSS-SECTIONAL SHAPE | HEXAGON |
| LENGTH | 0.878 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-863, CL 303, COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | POST, SPACER |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.086 INCHES RIGHT EXTERNAL |
| NOMINAL THREAD SIZE | 0.086 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) |
| SECOND SHOULDER LENGTH | 0.18 INCHES MINIMUM AND 0.20 INCHES MAXIMUM |
| SECOND SHOULDER WIDTH ACROSS FLATS | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM |
| SHOULDER DIAMETER | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| SHOULDER LENGTH | 0.02 INCHES MINIMUM AND 0.04 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM |
| STYLE DESIGNATOR | TWO SHOULDERS LEFT INTERNAL AND RIGHT EXTERNAL THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD LENGTH | 0.17 INCHES NOMINAL RIGHT EXTERNAL |
| THREAD LENGTH | 0.18 INCHES MINIMUM AND 0.20 INCHES MAXIMUM LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD CLASS | 2A RIGHT EXTERNAL |
| THREAD CLASS | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD DIRECTION | RIGHT-HAND RIGHT EXTERNAL |
| THREAD QUANTITY PER INCH | 56 RIGHT EXTERNAL |
| THREAD QUANTITY PER INCH | 56 LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD SERIES DESIGNATOR | UNC LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD SERIES DESIGNATOR | UNC RIGHT EXTERNAL |