NAVAL SEA SYSTEMS COMMAND | 53711 |
NAVAL SEA SYSTEMS COMMAND | 53711 |
NAVAL SHIP ENGINEERING CENTER PHILADELPHIA DIVISION SUBMARINE ANTENNA QUALITY ASSURANCE | 25685 |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.875 INCHES NOMINAL |
FASTENER LENGTH | 1.000 INCHES NOMINAL |
HEAD STYLE | FLAT COUNTERSUNK |
HEAD DIAMETER | 0.670 INCHES MINIMUM AND 0.762 INCHES MAXIMUM |
LOCKING FEATURE | PELLET THREADS OR STRIP THREADS OR PATCH THREADS |
NOMINAL THREAD DIAMETER | 0.375 INCHES |
FEATURES PROVIDED | FINISHED HEAD |
THREAD QUANTITY PER INCH | 16 |
COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURENICKEL ALLOY 400 FASTENER |
MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE FASTENER |
SURFACE TREATMENT | LUBRICANT THREADS |
THREAD SERIES DESIGNATOR | UNC |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.875 INCHES NOMINAL |
FASTENER LENGTH | 1.000 INCHES NOMINAL |
HEAD STYLE | FLAT COUNTERSUNK |
HEAD DIAMETER | 0.670 INCHES MINIMUM AND 0.762 INCHES MAXIMUM |
LOCKING FEATURE | PELLET THREADS OR STRIP THREADS OR PATCH THREADS |
NOMINAL THREAD DIAMETER | 0.375 INCHES |
FEATURES PROVIDED | FINISHED HEAD |
THREAD QUANTITY PER INCH | 16 |
COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURENICKEL ALLOY 400 FASTENER |
MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE FASTENER |
SURFACE TREATMENT | LUBRICANT THREADS |
THREAD SERIES DESIGNATOR | UNC |
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of .19 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of . 15 inch ( . 38 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE. |