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National Stock Number:
5305-00-272-5081
Federal Supply Class:
5305
National Item Identification Number:
002725081
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:
| 9B9715 | 11083 | CATERPILLAR INC | | NSR5252-13 | 01843 | AMBAC INTERNATIONAL CORPORATION | | NSR5252-13CA | 01843 | AMBAC INTERNATIONAL CORPORATION | | NSR5252-9 | 01843 | AMBAC INTERNATIONAL CORPORATION | | NSR5252-13 | 24956 | UNITED TECHNOLOGIES CORP ELECTRO SYSTEMS INC | | NSR5252-13CA | 24956 | UNITED TECHNOLOGIES CORP ELECTRO SYSTEMS INC | | NSR5252-9 | 24956 | UNITED TECHNOLOGIES CORP ELECTRO SYSTEMS INC |
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Techincal Specification:
| FASTENER LENGTH | 0.250 INCHES NOMINAL | | HEAD DIAMETER | 0.281 INCHES NOMINAL | | HEAD HEIGHT | 0.125 INCHES NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | SLOT | | NOMINAL THREAD DIAMETER | 4.0 MILLIMETERS | | NONSTANDARD THREAD PITCH DIAMETER | +0.003461 TO 0.003545 MILLIMETERS | | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE | | SCREW SURFACE TREATMENT | CADMIUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.250 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | SI | | THREAD PITCH IN MILLIMETERS | 0.7 |
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