5305-01-266-8321 SCREW,MACHINE Index 5305-01-266-8323 SCREW,MACHINE

National Stock Number:
5305-01-266-8322

Federal Supply Class:
5305

National Item Identification Number:
012668322

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:
FF-S-9281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS24693-C23296906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
HEAD DIAMETER0.238 INCHES MINIMUM AND 0.279 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
NOMINAL THREAD DIAMETER0.138 INCHES
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 3 STYLE
SCREW MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES
SCREW MATERIALSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A380 ASSN STD SINGLE TREATMENT RESPONSE
SCREW SURFACE TREATMENTPASSIVATE
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.859 INCHES MINIMUM AND 0.940 INCHES MAXIMUM
THREAD QUANTITY PER INCH40
THREAD SERIES DESIGNATORUNF


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