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National Stock Number:
5305-00-551-0253
Federal Supply Class:
5305
National Item Identification Number:
005510253
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:
| 221601S3-4 | 88818 | KEARFOTT CORPORATION | | 240-304SS | 06840 | BENDIX CORP THE | | 240-304SS | 55972 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS | | FF1L0-304SS | 06845 | RAYTHEON COMPANY | | FF1L0-304SS | 55972 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS | | FFIL0-304SS | 99251 | MISSION SYSTEMS DAVENPORT INC. | | SC7345 | 0NKU0 | LCT ELECTRONICS |
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Techincal Specification:
| FASTENER LENGTH | 0.250 INCHES NOMINAL | | HEAD DIAMETER | 0.153 INCHES NOMINAL | | HEAD HEIGHT | 0.058 INCHES NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | SLOT | | NOMINAL THREAD DIAMETER | 0.099 INCHES | | SCREW MATERIAL | STEEL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.220 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 56 | | THREAD SERIES DESIGNATOR | UNF |
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