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National Stock Number: 5305-00-144-3931
Federal Supply Class: 5305
National Item Identification Number: 001443931
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:
094 | 83385 | MICRODOT MFG INC GREER-CENTRAL DIV | 211-0565-00 | 59873 | SPACELABS-HILLSBORO OPERATIONS SQUIBB VITATEK INC | 211-0565-00 | 83385 | MICRODOT MFG INC GREER-CENTRAL DIV | 211-565 | 59873 | SPACELABS-HILLSBORO OPERATIONS SQUIBB VITATEK INC | AN526-632R44 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
FASTENER LENGTH | 2.750 INCHES NOMINAL | HEAD DIAMETER | 0.303 INCHES MINIMUM AND 0.321 INCHES MAXIMUM | HEAD HEIGHT | 0.086 INCHES MAXIMUM | HEAD STYLE | BUTTON | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH | NOMINAL THREAD DIAMETER | 0.138 INCHES | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE | SCREW MATERIAL | STEEL OR STEEL COMP 1010 | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE | SCREW SURFACE TREATMENT | CADMIUM | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 1.750 INCHES MINIMUM | THREAD SERIES DESIGNATOR | UNC | THREAD QUANTITY PER INCH | 32 |
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