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NSN 5305-00-579-2141, 5305005792141
SCREW,CAP,HEXAGON HEAD

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 005792141
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.
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DLMS® Summary

National Stock Number 5305-00-579-2141

National Stock Number (NSN) 5305-00-579-2141, or NIIN 005792141, (screw,cap,hexagon head) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

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

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 1991, this NSN's acquisition method was noted as: Not established. Not established.

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 5305005792141 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

THREAD LENGTH
(AASA) 1.938 INCHES MINIMUM AND 2.250 INCHES MAXIMUM
NOMINAL THREAD DIAMETER
(AHYM) 1.000 INCHES
THREAD QUANTITY PER INCH
(CMLP) 8
HEAD HEIGHT
(AASU) 0.591 INCHES MINIMUM AND 0.627 INCHES MAXIMUM
MATERIAL
(MATT) STEEL OVERALL
THREAD SERIES DESIGNATOR
(THSD) UNC
THREAD CLASS
(AAJD) 2A
MINIMUM TENSILE STRENGTH
(CQBC) 55000 POUNDS PER SQUARE INCH
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FASTENER LENGTH
(AASB) 2.250 INCHES NOMINAL
MINIMUM YIELD STRENGTH
(CQHQ) 28000 POUNDS PER SQUARE INCH
HEAD STYLE
(AASK) HEXAGON
HARDNESS RATING
(CQFM) 207.0 BRINELL STANDARD MAXIMUM OVERALL
THREAD DIRECTION
(AAJF) RIGHT-HAND
WIDTH BETWEEN FLATS
(AATB) 1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
NONDEFINITIVE SPEC/STD DATA
(ZZZT) 2 TYPE AND 10 STYLE


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