5305-00-902-7278 SCREW,MACHINE Index 5305-00-902-7281 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-00-902-7280

Federal Supply Class:
5305

National Item Identification Number:
009027280

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:
10114656A486GNIMIKKEISTOKESKUS NCB FINLAND
HS2623-3Z417446HUCK INTERNATIONAL, INC
NAS1221-3-42N335PATTONAIR USA, INC.
HT195-3-473197HI-SHEAR CORPORATION
NAS122-3-4P92215HOWMET GLOBAL FASTENING SYSTEMS INC
NAS122-3-4PC4293ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH
NAS1221-3-4P04348LAWRENCE ENGINEERING AND SUPPLY INC
NAS1221-3-4P07851NOR-CAL SUPPLY CO
NAS1221-3-4P08938AIR INDUSTRIES CO INC
NAS1221-3-4P30902F AND C SALES INC
NAS1221-3-4P56878SPS TECHNOLOGIES, LLC
NAS1221-3-4P58998FASTENER INNOVATION TECHNOLOGY, INC.
NAS1221-3-4P73197HI-SHEAR CORPORATION
NAS1221-3-480205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS1221-3-4P80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS1503-5T80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS1221-3-4P80539SPS TECHNOLOGIES, LLC
NAS1221-3-4P97928HUCK INTL INC
NAS1221-3-4PC4293ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH
NAS1221R3-4D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
NAS1221-3-4PR1120SATAIR A/S


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH0.573 INCHES MINIMUM AND 0.620 INCHES MAXIMUM
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
HEAD DIAMETER0.344 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHIGH-TORQUE
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.190 INCHES
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE
SCREW MATERIALSTEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 8740
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
THREAD LENGTH0.251 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH32


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