4820-00-821-6004 VALVE,CHECK Index 1560-00-821-6009 FLOOR,AIRCRAFT

National Stock Number:
5305-00-821-6005

Federal Supply Class:
5305

National Item Identification Number:
008216005

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:
NAS1221-06-2404348LAWRENCE ENGINEERING AND SUPPLY INC
NAS1221-06-2407851NOR-CAL SUPPLY CO
NAS1221-06-2408938AIR INDUSTRIES CO INC
NAS1221-06-2417446HUCK INTERNATIONAL, INC
NAS1221-06-2430902F AND C SALES INC
NAS1221-06-2456878SPS TECHNOLOGIES, LLC
NAS1221-06-2458998FASTENER INNOVATION TECHNOLOGY, INC.
NAS1221-06-2473197HI-SHEAR CORPORATION
NAS1221-06-2480205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS1221-06-2480539SPS TECHNOLOGIES, LLC
NAS1221-06-2492215HOWMET GLOBAL FASTENING SYSTEMS INC
NAS1221-06-2497928HUCK INTL INC
NAS1221-06-24L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH1.762 INCHES MINIMUM AND 1.792 INCHES MAXIMUM
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
HEAD DIAMETER0.244 INCHES MINIMUM AND 0.279 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHIGH-TORQUE
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.138 INCHES
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
SCREW MATERIALSTEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
SPECIFICATION/STANDARD DATA80205-NAS1221 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.277 INCHES MINIMUM
THREAD SERIES DESIGNATORUNJC
THREAD QUANTITY PER INCH32


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