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National Stock Number:
5305-00-452-3985
Federal Supply Class:
5305
National Item Identification Number:
004523985
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:
| 991-4-00143-022 | K2523 | EATON LIMITED | | A217B14 | K7766 | BRITISH STANDARDS INSTITUTION | | D.S.R.2929-13-09 | K1037 | MEGGITT AEROSPACE LIMITED | | A217B14 | K8837 | BAS COMPONENTS LIMITED | | A217B14 | KCWE1 | UFC AEROSPACE EUROPE LIMITED |
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Techincal Specification:
| FASTENER LENGTH | 0.418 INCHES MINIMUM AND 0.438 INCHES MAXIMUM | | HEAD HEIGHT | 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM | | HEAD DIAMETER | 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM | | HEAD STYLE | PAN NO. 2 | | INTERNAL DRIVE STYLE | SLOT | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DTD904,FSCM K7766 NATIONAL SPEC SINGLE TREATMENT RESPONSE | | SCREW MATERIAL | STEEL | | SCREW SURFACE TREATMENT | CADMIUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 0.356 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
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