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National Stock Number:
5305-99-770-6355
Federal Supply Class:
5305
National Item Identification Number:
997706355
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:
| 010291 | K8098 | MAN DIESEL & TURBO LTD | | BS57-TABLE 5 2BA X 5/16 | K7766 | BRITISH STANDARDS INSTITUTION | | ST010291 | 5P630 | MAN ENERGY SOLUTIONS USA INC | | ST010291 | K8098 | MAN DIESEL & TURBO LTD |
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Techincal Specification:
| EXTERNAL THREAD TOLERANCE CLASS | NORMAL | | FASTENER LENGTH | 0.312 INCHES NOMINAL | | HEAD HEIGHT | 0.132 INCHES MINIMUM AND 0.139 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE | | NOMINAL THREAD DIAMETER | 0.185 INCHES | | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | K7766-BS57 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE | | SCREW MATERIAL | STEEL | | WIDTH BETWEEN FLATS | 0.319 INCHES MINIMUM AND 0.324 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.312 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | BA | | THREAD PITCH IN MILLIMETERS | 0.81 |
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