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National Stock Number:
5305-01-521-1785
Federal Supply Class:
5305
National Item Identification Number:
015211785
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:
| 0.250-20UNC-3A X 1.750LG NICU | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | 218007702 | 96169 | ELECTRIC BOAT CORPORATION | | 596-7409258-11 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 596-7409258-11 | 96169 | ELECTRIC BOAT CORPORATION | | B434-8310-11 | 96169 | ELECTRIC BOAT CORPORATION | | MIL-S-12222 | 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 | 1.750 INCHES NOMINAL | | 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 | CROSS RECESS TYPE 1 | | LOCKING FEATURE | PATCH OR PELLET OR STRIP FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY K-500 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | NONDEFINITIVE SPEC/STD DATA | 2 TYPE | | SPECIAL FEATURES | DISTRIBUTION STATEMENT D-DATA EXPORT RESTRICTED | | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.500 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC |
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