| BARREL HEIGHT | 0.287 INCHES MINIMUM AND 0.307 INCHES MAXIMUM |
| COUNTERBORE DIAMETER | 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM NUT |
| HARDNESS RATING | 43.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4340 OR STEEL COMP 8740 OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT COUNTERBORE DEPTH | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM NUT |
| NUT DIAMETER | 0.474 INCHES MINIMUM AND 0.484 INCHES MAXIMUM |
| NUT LENGTH | 0.474 INCHES MINIMUM AND 0.494 INCHES MAXIMUM |
| NUT HEIGHT | 0.385 INCHES MAXIMUM |
| NUT STYLE | FLOATING SELF-LOCKING BARREL |
| SPECIFICATION/STANDARD DATA | 81205-BACN10HC MANUFACTURERS STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| TEMP RATING | 450.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNJF |
| THREAD QUANTITY PER INCH | 28 |