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NSN 5305-01-664-8611, 5305016648611
SCREW,CAP,HEXAGON HEAD

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 016648611
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 5305-01-664-8611

National Stock Number (NSN) 5305-01-664-8611, or NIIN 016648611, (screw,cap,hexagon head) was assigned July 10, 2017 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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 unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 11, 2017, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.

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 5305016648611 does not contain precious metals.

This NSN is associated to Schedule B 7318152000: bolts and bolts and their nuts or washers exported in the same shipment. The Schedule B End Use is listed as iron and steel products, other. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.

This information was last updated on .


Technical Characteristics

CHAMFER ANGLE
(CSYT) 15.0 DEGREES MINIMUM AND 30.0 DEGREES MAXIMUM
COLOR
(HUES) YELLOW OVERALL
FASTENER LENGTH
(AASB) 1.750 INCHES NOMINAL
HEAD HEIGHT
(AASU) 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM
HEAD STYLE
(AASK) HEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCY
(CXCY) HEX CAP SCREW, UNC-2A CARBON STEEL, YELLOW ZINC PLATED SAE J429, GRADE A5
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) SAE J995 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) STEEL AND STEEL CORROSION RESISTING OVERALL
MINIMUM TENSILE STRENGTH
(CQBC) 120000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER
(AHYM) 0.375 INCHES
SPECIAL FEATURES
(FEAT) WIDTH ACROSS CORNERS MIN. 0.628 MAX 0.650
WIDTH BETWEEN FLATS
(AATB) 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) ASTM F 1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) ZINC OVERALL
THREAD CLASS
(AAJD) 2A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 1.000 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
THREAD QUANTITY PER INCH
(CMLP) 16
THREAD SERIES DESIGNATOR
(THSD) UNC

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