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National Stock Number:
5305-01-374-3278
Federal Supply Class:
5305
National Item Identification Number:
013743278
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:
| 5768570 ITEM 58 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 60-16-9622 | 96169 | ELECTRIC BOAT CORPORATION | | 704-5768570 ITEM 58 TYPE VI | 53711 | NAVAL SEA SYSTEMS COMMAND | | FF-S-86 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.250 INCHES NOMINAL | | HARDNESS RATING | 42.0 ROCKWELL C NOMINAL FASTENER | | HEAD DIAMETER | 0.720 INCHES MINIMUM AND 0.781 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | SIX SPLINE | | LOCKING FEATURE | PATCH OR PELLET OR STRIP THREADS | | MATERIAL | PLASTIC POLYAMIDE (NYLON) LOCKING FEATURESTEEL FASTENER | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | NONDEFINITIVE SPEC/STD DATA | 5 TYPE | | SPLINE MAJOR DIAMETER | 0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM | | SPLINE MINOR DIAMETER | 0.212 INCHES MINIMUM AND 0.214 INCHES MAXIMUM | | SPLINE WIDTH | 0.064 INCHES MINIMUM AND 0.065 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.905 INCHES MINIMUM AND 1.016 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 18 |
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