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National Stock Number:
5305-01-274-1256
Federal Supply Class:
5305
National Item Identification Number:
012741256
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:
| 13234155 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 38031K-4C-16 | 56878 | SPS TECHNOLOGIES, LLC | | M63CR420-165 | 17910 | NYLOK LLC | | TN33CR040J12PS | 26304 | TORKON FASTENER CORP |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNRC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.868 INCHES MINIMUM AND | | 1.000 INCHES MAXIMUM | | FASTENER LENGTH | 0.968 INCHES MINIMUM AND | | 1.000 INCHES MAXIMUM | | MATERIAL | PLASTIC LOCKING FEATURE | | STEEL COMP 302 OR | | STEEL COMP 304 OR | | STEEL COMP 305 FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A493 ASSN STD ALL MATERIAL RESPONSES FASTENER | | SURFACE TREATMENT | PASSIVATE FASTENER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER | | HARDNESS RATING | 80.0 ROCKWELL B MINIMUM FASTENER | | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH | | HEAD STYLE | BUTTON | | HEAD DIAMETER | 0.122 INCHES MINIMUM AND | | 0.132 INCHES MAXIMUM | | HEAD HEIGHT | 0.419 INCHES MINIMUM AND | | 0.437 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.1562 INCHES MINIMUM AND | | 0.1582 INCHES MAXIMUM | | LOCKING FEATURE | PELLET THREADS |
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