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National Stock Number:
5305-01-338-4008
Federal Supply Class:
5305
National Item Identification Number:
013384008
Description:
SCREW,CAP,SOCKET HEAD
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
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Manufacturer Information:
| 211035937 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 556-6405334 ITE | 53711 | NAVAL SEA SYSTEMS COMMAND | | 801-6405342 FIND 22 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 801-6405342-22 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 801-6408780 FIND 21 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 556-6405334-59 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | | MILS1222TYII 1/4-20UNRC-3AX1/2LG | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| FASTENER LENGTH | 0.500 INCHES NOMINAL | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM FASTENER | | HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | LOCKING FEATURE | PATCH OR PELLET OR STRIP THREADS | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTMA574 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | | MATERIAL | STEEL UNS K03104 FASTENER | | MINIMUM YIELD STRENGTH | 155000 POUNDS PER SQUARE INCH | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.400 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 20 |
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