5305-00-487-6255 SCREW-FH BRASS 2 64 Index 5305-00-487-6261 SCREW,INSTRUMENT

National Stock Number:
5305-00-487-6256

Federal Supply Class:
5305

National Item Identification Number:
004876256

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.


Manufacturer Information:
250-204B1NZ85EMCORE SPACE & NAVIGATION CORPORATION
250-204B55972HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS
F0-204B55972HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS


Techincal Specification:
COUNTERSINK ANGLE81.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
FASTENER LENGTH0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
HEAD DIAMETER0.161 INCHES MINIMUM AND 0.164 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.086 INCHES
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONECLIPSALOY,NO. 88,1/2 H,THE BENDIX CORP MFR REF SINGLE MATERIAL RESPONSE
SCREW MATERIALCOPPER ALLOY
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPS17 FSCM 19315 MFR REF SINGLE TREATMENT RESPONSE
SCREW SURFACE TREATMENTOXIDE
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.167 INCHES MINIMUM AND 0.188 INCHES MAXIMUM
THREAD QUANTITY PER INCH64
THREAD SERIES DESIGNATORUNF


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