| CONCENTRIC HOLE DEPTH | 4.750 INCHES NOMINAL |
| CONCENTRIC HOLE DIAMETER | 0.310 INCHES NOMINAL |
| DISTANCE FROM CENTERLINE TO FLAT | 0.365 INCHES MINIMUM AND 0.370 INCHES MAXIMUM |
| FASTENER LENGTH | 5.630 INCHES NOMINAL |
| HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 0.860 INCHES MINIMUM AND 0.900 INCHES MAXIMUM |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| HEAD STYLE | DEE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6407 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | C.P.T. 8206 FSCM 13002 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| TEST DATA DOCUMENT | 13002-C.P.T.9108 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.000 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNF |