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National Stock Number:
5305-01-443-7149
Federal Supply Class:
5305
National Item Identification Number:
014437149
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:
| L320001149 | 36090 | LOCKHEED MARTIN LIBRASCOPE CORP |
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Techincal Specification:
| FASTENER LENGTH | 1.312 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 | KNURLED NO. 1 | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A493, 300 SERIES ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SPECIAL FEATURES | 1.000 MIN EDM SLOT ALONG LENGTH | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.500 INCHES MINIMUM | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | THREAD QUANTITY PER INCH | 20 |
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