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National Stock Number: 5305-01-016-2917
Federal Supply Class: 5305
National Item Identification Number: 010162917
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:
2-56 NC X 5/16 CRES | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | 92552020500 | 19315 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND CONTROL SYSTEMS | 92552020500 | 55972 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS | 92552020500 | 96774 | HONEYWELL INTERNATIONAL INC. | 92552025000 | 19315 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND CONTROL SYSTEMS | FF-S-92 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
FASTENER LENGTH | 0.292 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | HEAD DIAMETER | 0.155 INCHES MINIMUM AND 0.167 INCHES MAXIMUM | HEAD HEIGHT | 0.045 INCHES MINIMUM AND 0.053 INCHES MAXIMUM | HEAD STYLE | PAN | INTERNAL DRIVE STYLE | SLOT | NOMINAL THREAD DIAMETER | 0.086 INCHES | NONDEFINITIVE SPEC/STD DATA | I TYPE AND 9S STYLE | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE OR ASTM A582 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A582 ASSN STD 4TH MATERIAL RESPONSE | SCREW MATERIAL | STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 303 OR STEEL COMP 303SE | SPECIFICATION/STANDARD DATA | 81348-FF-S-92 GOVERNMENT SPECIFICATION | SPECIAL FEATURES | SCREW, MACHINE, CRES, 2-56 NC-2A X 5/16 CHAMFER THRD END 45 DEGREES X ONE THREAD | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.256 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | THREAD QUANTITY PER INCH | 56 | THREAD SERIES DESIGNATOR | UNC |
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