| MATERIAL DOCUMENT AND CLASSIFICATION | S143,FSCM K0289 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT STYLE | HEXAGON |
| OVERALL HEIGHT | 0.300 INCHES NOMINAL |
| WASHER OUTSIDE DIAMETER | 0.700 INCHES NOMINAL |
| WASHER THICKNESS | 0.100 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.429 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | S26-13,FSCM K0289 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES | UNJF |