7050-01-503-3989 COMPUTER SUBASSEMBLY Index 7025-01-503-3991 DISPLAY UNIT

National Stock Number:
5305-01-503-3990

Federal Supply Class:
5305

National Item Identification Number:
015033990

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.


Manufacturer Information:
0.312-18UNC-3A X 1.000LG NICU81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
21800771796169ELECTRIC BOAT CORPORATION
596-7410248-1953711NAVAL SEA SYSTEMS COMMAND
596-74110248-1953711NAVAL SEA SYSTEMS COMMAND
218007717A96169ELECTRIC BOAT CORPORATION
596-7410248-19D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
M1222SN5C316NANN81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
60-16-1405A96169ELECTRIC BOAT CORPORATION
B831-9512-1996169ELECTRIC BOAT CORPORATION


Techincal Specification:
NOMINAL THREAD DIAMETER0.312 INCHES
SPECIAL FEATURESTECH DATA NOT AUTHORIZED FOR RELEASE OUTSIDE OF U.S.
WIDTH ACROSS FLATS0.250 INCHES NOMINAL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.000 INCHES NOMINAL
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNC
FASTENER LENGTH1.000 INCHES NOMINAL
HEAD DIAMETER0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM
HEAD HEIGHT0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATUREPELLET THREADS OR STRIP THREADS OR PATCH THREADS
MATERIALNICKEL ALLOY 400 OVERALL
PROPRIETARY CHARACTERISTICSPACS


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