5305-00-008-8988 SCREW,SHOULDER Index 5306-00-008-8990 BOLT,MACHINE

National Stock Number:
5305-00-008-8989

Federal Supply Class:
5305

National Item Identification Number:
000088989

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:
MB300-56003950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
MB300-560U1604MARTIN-BAKER AIRCRAFT COMPANY LIMITED


Techincal Specification:
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
FASTENER LENGTH1.000 INCHES NOMINAL
HEAD DIAMETER0.452 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.250 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
SCREW MATERIALSTEEL CORROSION RESISTING
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDS301-1 FSCM 04253 MFR REF SINGLE TREATMENT RESPONSE
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONS96 FSCM 04253 MFR REF SINGLE MATERIAL RESPONSE
SCREW SURFACE TREATMENTCADMIUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.687 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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