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National Stock Number: 5305-01-515-1766
Federal Supply Class: 5305
National Item Identification Number: 015151766
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:
0.312-18UNRC-3A X 0.875LG NICUAL | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 596-7409687-63 | 53711 | NAVAL SEA SYSTEMS COMMAND | M1222SN5C314NCNN | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | MIL-DTL-1222 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | MIL-S-1222 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | B831-3100-63 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
FASTENER LENGTH | 0.875 INCHES NOMINAL | HEAD DIAMETER | 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM | HEAD HEIGHT | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | HEAD STYLE | FLAT CHAMFER | INTERNAL DRIVE STYLE | HEXAGON | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | NICKEL ALLOY 500 OVERALL | PROPRIETARY CHARACTERISTICS | PACS | NOMINAL THREAD DIAMETER | 0.312 INCHES | NONDEFINITIVE SPEC/STD DATA | 2 TYPE | SPECIAL FEATURES | DATA EXPORT RESTRICTED | SPECIFICATION/STANDARD DATA | 81349--1222SN5C314NCNN GOVERNMENT SPECIFICATION | WIDTH ACROSS FLATS | 0.250 INCHES NOMINAL | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.875 INCHES NOMINAL | THREAD QUANTITY PER INCH | 18 | THREAD SERIES DESIGNATOR | UNRC |
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