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National Stock Number: 5305-01-520-4141
Federal Supply Class: 5305
National Item Identification Number: 015204141
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:
NAS388-8-10 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM | FASTENER LENGTH | 0.623 INCHES NOMINAL | HEAD DIAMETER | 0.320 INCHES NOMINAL | HEAD STYLE | OVAL COUNTERSUNK | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | NOMINAL THREAD DIAMETER | 0.164 INCHES | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW-82 DEGREE OVAL RECESSED HEAD-MACHINE | SCREW MATERIAL | STEEL | SCREW SURFACE TREATMENT | CADMIUM | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.563 INCHES MINIMUM AND 0.625 INCHES MAXIMUM | THREAD SERIES DESIGNATOR | UNC | THREAD QUANTITY PER INCH | 32 |
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