1660-00-019-3253 PISTON,VALVE,PRESSU Index 5305-00-019-3257 SCREW,MACHINE

National Stock Number:
5305-00-019-3255

Federal Supply Class:
5305

National Item Identification Number:
000193255

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:
211-0503-0059873SPACELABS-HILLSBORO OPERATIONS SQUIBB VITATEK INC
211-50359873SPACELABS-HILLSBORO OPERATIONS SQUIBB VITATEK INC
68F20-6-32-3-1639428MCMASTER-CARR SUPPLY CO
MS35225-2596906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH0.188 INCHES NOMINAL
HEAD DIAMETER0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM
HEAD STYLEPAN NO. 2
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
NOMINAL THREAD DIAMETER0.138 INCHES
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 9S STYLE
SCREW MATERIALSTEEL
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-409 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE
THREAD CLASS2A
THREAD LENGTH0.188 INCHES NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH32


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