| COUNTERBORE DIAMETER | 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM NUT |
| HARDNESS RATING | 32.0 ROCKWELL C NOMINAL |
| LOCKING FEATURE | FREE-RUNNING ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5709 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | NICKEL ALLOY OVERALL |
| III PRECIOUS MATERIAL | SILVER |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT COUNTERBORE DEPTH | 0.105 INCHES MINIMUM AND 0.111 INCHES MAXIMUM NUT |
| NUT HEIGHT | 0.403 INCHES MINIMUM AND 0.423 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | SILVER OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES | UNJF |