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National Stock Number:
5305-00-208-8975
Federal Supply Class:
5305
National Item Identification Number:
002088975
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:
| 6723159 | 24617 | GENERAL MOTORS CORP | | 6723159 | 63005 | ROLLS-ROYCE CORPORATION | | 6723159 | 73342 | ALLISON TRANSMISSION INC |
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Techincal Specification:
| FASTENER LENGTH | 2.139 INCHES MINIMUM AND 2.143 INCHES MAXIMUM | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM | | HEAD HEIGHT | 0.109 INCHES MINIMUM AND 0.117 INCHES MAXIMUM | | HEAD DIAMETER | 0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SCREW MATERIAL | STEEL COMP 4340 | | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2485 ASSN STD SINGLE TREATMENT RESPONSE | | THREAD CLASS | 3A | | THREAD LENGTH | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF |
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