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NSN 5305-00-297-0783, 5305002970783
SCREW,CAP,HEXAGON HEAD

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 002970783
Codification Country
United States
Item Name Code
INC 18257
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 5305-00-297-0783

National Stock Number (NSN) 5305-00-297-0783, or NIIN 002970783, (screw,cap,hexagon head) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 002970783 was cancelled on July 24, 2019, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5305007247224. This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 18257. [AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION INTO HOLES IN ASSEMBLED PARTS, FOR MATING WITH A PREFORMED INTERNAL THREAD AND FOR TIGHTENING OR RELEASING BY TORQUING THE HEAD. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF THE SAME NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. THE THREAD LENGTH BEING THE CONTROLLED DIMENSION, THE GRIP LENGTH IS NOT SPECIFIED. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER OR BY THE THUMB AND FINGERS. EXCLUDES:BOLT,MACHINE; BOLT,EXTERNALLY RELIEVED BODY; BOLT,INTERNAL WRENCHING; AND SCREW,CAP,SOCKET HEAD.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5305002970783 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

HEAD HEIGHT
(AASU) 0.391 INCHES NOMINAL
THREAD QUANTITY PER INCH
(CMLP) 11
HARDNESS RATING
(CQFM) 23.0 ROCKWELL C MINIMUM OVERALL AND 30.0 ROCKWELL C MAXIMUM OVERALL
THREAD LENGTH
(AASA) 1.500 INCHES MINIMUM AND 1.719 INCHES MAXIMUM
THREAD DIRECTION
(AAJF) RIGHT-HAND
HEAD STYLE
(AASK) HEXAGON
WIDTH BETWEEN FLATS
(AATB) 0.938 INCHES NOMINAL
MINIMUM TENSILE STRENGTH
(CQBC) 120000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER
(AHYM) 0.625 INCHES
FASTENER LENGTH
(AASB) 2.500 INCHES NOMINAL
THREAD CLASS
(AAJD) 2A
SURFACE TREATMENT
(SFTT) CADMIUM OVERALL OR ZINC OVERALL
MATERIAL
(MATT) STEEL OVERALL
THREAD SERIES DESIGNATOR
(THSD) UNC


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