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National Stock Number:
5305-01-449-4457
Federal Supply Class:
5305
National Item Identification Number:
014494457
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:
| 12933759 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD CLASS | 2A | | NONSTANDARD THREAD PITCH DIAMETER | 0.2723 TO 0.2764 INCHES | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.450 INCHES MINIMUM AND | | 1.550 INCHES MAXIMUM | | FASTENER LENGTH | 4.970 INCHES MINIMUM AND | | 5.000 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4130 OR | | STEEL COMP 8630 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 OR A331 .500 DIA CONDITION OPTIONAL ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 TY 2 EMBRITTLEMENT RELIEVE AFTER PLATING ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | FLAT FILLISTER | | HEAD DIAMETER | 0.458 INCHES MINIMUM AND | | 0.469 INCHES MAXIMUM | | HEAD HEIGHT | 0.306 INCHES MINIMUM AND | | 0.312 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.250 INCHES MINIMUM AND | | 0.253 INCHES MAXIMUM |
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