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National Stock Number: 5305-01-024-2181
Federal Supply Class: 5305
National Item Identification Number: 010242181
Description: SCREW,MACHINE
Detail: An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.
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Manufacturer Information:
321-0426-010 | 13499 | ROCKWELL COLLINS, INC. | 321-0426-010 | 95105 | ROCKWELL COLLINS, INC. |
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Techincal Specification:
FASTENER LENGTH | 1.313 INCHES MINIMUM AND 1.375 INCHES MAXIMUM | HEAD DIAMETER | 0.387 INCHES MINIMUM AND 0.414 INCHES MAXIMUM | HEAD HEIGHT | 0.155 INCHES MINIMUM AND 0.170 INCHES MAXIMUM | HEAD STYLE | FILLISTER | INTERNAL DRIVE STYLE | SLOT | PROPRIETARY CHARACTERISTICS | PACS | NOMINAL THREAD DIAMETER | 0.250 INCHES | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A545 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A546 ASSN STD SINGLE MATERIAL RESPONSE | SCREW MATERIAL | STEEL COMP 1038 | SCREW SURFACE TREATMENT | CADMIUM | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 1.213 INCHES MINIMUM AND 1.375 INCHES MAXIMUM | THREAD QUANTITY PER INCH | 20 | THREAD SERIES DESIGNATOR | UNC |
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