| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 14 |
| THREAD SERIES | UNJF |
| FABRICATION METHOD | ANY ACCEPTABLE |
| LENGTH TO SHOULDER | 0.687 INCHES MINIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-637,ASTM A576-67T FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1137 OVERALL OR STEEL COMP 1141 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.875 INCHES |
| NOMINAL TUBE OUTSIDE DIAMETER | 0.625 INCHES |
| NUT HEIGHT | 0.970 INCHES MINIMUM AND 0.990 INCHES MAXIMUM |
| NUT STYLE | TUBE COUPLING |
| SEAT ANGLE | 45.00 DEGREES NOMINAL |
| SMALLEST INSIDE DIAMETER | 0.690 INCHES MINIMUM AND 0.695 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 96906-MS21921 GOVERNMENT STANDARD |
| SPECIAL FEATURES | SUPPORTS GRUMMAN A10 AIRCRAFT |
| WIDTH ACROSS FLATS | 1.000 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |