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National Stock Number:
5305-01-250-9210
Federal Supply Class:
5305
National Item Identification Number:
012509210
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:
| HS4727-3-8 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC | | HS4727-3-8 | 06725 | SPS TECHNOLOGIES, LLC | | HS4727-3-8 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HS4727-3-8 | 1DS50 | VOI-SHAN DIV OF VSI CORP | | HS4727-3-8 | 27238 | BRISTOL INDUSTRIES, LLC | | HS4727-3-8 | 27624 | SPS TECHNOLOGIES LLC | | HS4727-3-8 | 58794 | FASTENER TECHNOLOGY CORP | | HS4727-3-8 | 80539 | SPS TECHNOLOGIES, LLC | | HS4727-3-8 | 8V613 | THE BOEING COMPANY | | HS4727-3-8 | 8Z507 | CALIFORNIA SCREW PRODUCTS CORP. | | HS4727-3-8 | 92595 | NELSON STUD WELDING, INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.891 INCHES MINIMUM AND 0.936 INCHES MAXIMUM | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM | | HEAD DIAMETER | 0.337 INCHES MINIMUM AND 0.387 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS6322 ASSN STD SINGLE MATERIAL RESPONSE | | SCREW MATERIAL | STEEL COMP 8740 | | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE | | SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE | | THREAD LENGTH | 0.376 INCHES MINIMUM AND 0.451 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
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