5305-01-260-3248 SCREW,MACHINE Index 5305-01-260-3250 SCREW,MACHINE

National Stock Number:
5305-01-260-3249

Federal Supply Class:
5305

National Item Identification Number:
012603249

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:
AN520UB0R288044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
FF-S-9281348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
FASTENER LENGTH0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
HEAD DIAMETER0.099 INCHES MINIMUM AND 0.113 INCHES MAXIMUM
HEAD HEIGHT0.053 INCHES MAXIMUM
HEAD STYLEROUND
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.060 INCHES
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1S STYLE
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613 FED SPEC ALL MATERIAL RESPONSES OR QQ-B-626 FED SPEC ALL MATERIAL RESPONSES OR QQ-W-321 FED SPEC ALL MATERIAL RESPONSES
SCREW MATERIALCOPPER ALLOY 230 OR COPPER ALLOY 240 OR COPPER ALLOY 260 OR COPPER ALLOY 268 OR COPPER ALLOY 270 OR COPPER ALLOY 342 OR COPPER ALLOY 353 OR COPPER ALLOY 360 OR COPPER ALLOY 377 OR COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OR COPPER ALLOY 510 OR COPPER ALLOY 745 OR COPPER ALLOY 752 OR COPPER ALLOY 764 OR COPPER ALLOY 770
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.069 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
THREAD QUANTITY PER INCH80
THREAD SERIES DESIGNATORUNF


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