| HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| NUT STYLE | HEXAGON |
| OVERALL HEIGHT | 0.380 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-19468 MIL SPEC SINGLE MATERIAL RESPONSE WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE NUT |
| MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE WASHER |
| MATERIAL | STEEL COMP 8740 OR STEEL COMP E4340 NUT |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SPECIAL FEATURES | CETYL ALCOHOL LUBRICANT PER MIL-L-87132,TY 1,GRADE A |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 28 |
| WASHER OUTSIDE DIAMETER | 0.461 INCHES MAXIMUM |
| WASHER THICKNESS | 0.107 INCHES MINIMUM AND 0.111 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| SURFACE TREATMENT | CADMIUM AND CHROMATE NUT |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |