THREAD SERIES DESIGNATOR | UNRF |
NOMINAL THREAD DIAMETER | 0.190 INCHES |
THREAD QUANTITY PER INCH | 32 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.297 INCHES MINIMUM AND |
| 0.391 INCHES MAXIMUM |
FASTENER LENGTH | 0.359 INCHES MINIMUM AND |
| 0.391 INCHES MAXIMUM |
MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE |
| STEEL FASTENER |
MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | OXIDE FASTENER |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER |
HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND |
| 45.0 ROCKWELL C MAXIMUM OVERALL |
MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
MINIMUM YIELD STRENGTH | 155000 POUNDS PER SQUARE INCH |
HEAD STYLE | FLAT CHAMFER |
HEAD DIAMETER | 0.303 INCHES MINIMUM AND |
| 0.312 INCHES MAXIMUM |
HEAD HEIGHT | 0.185 INCHES MINIMUM AND |
| 0.190 INCHES MAXIMUM |
INTERNAL DRIVE STYLE | HEXAGON |
WIDTH ACROSS FLATS | 0.156 INCHES MINIMUM AND |
| 0.159 INCHES MAXIMUM |
LOCKING FEATURE | PATCH OR |
| PELLET OR |
| STRIP THREADS |
SPECIFICATION/STANDARD DATA | 80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
SPEC/STD CONTROLLING DATA | |
MANUFACTURERS CODE | 81348 |
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-S-86 |