NSN 5305-01-612-6838, 5305016126838
SCREW,MACHINE

Federal Supply Classification: FSC 5305 - Screws
National Item Identification Number: NIIN 016126838
Codification Country: United States
Item Name Code: INC 06657
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 5305-01-612-6838

National Stock Number (NSN) 5305-01-612-6838, or NIIN 016126838, (screw,machine) was assigned October 18, 2012 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for this NSN.

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

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.

This NSN is assigned to Item Name Code (INC) 06657. [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.]. 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 5305016126838 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 May 01, 2025.

Technical Characteristics

COUNTERSINK ANGLE: (CRSQ) 90.0 DEGREES NOMINAL AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH: (AASB) 0.656 INCHES NOMINAL
HARDNESS RATING: (CQFM) 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
HEAD DIAMETER: (AASL) 0.319 INCHES MINIMUM AND 0.332 INCHES MAXIMUM
HEAD STYLE: (AASK) FLAT COUNTERSUNK
INTERNAL DRIVE STYLE: (ABQZ) CROSS RECESS TYPE II
MINIMUM TENSILE STRENGTH: (CQBC) 125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER: (AHYM) 0.164 INCHES
SCREW MATERIAL: (CYAU) STEEL
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (CYBE) QQ-P-416, TYPE II, CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE
SCREW SURFACE TREATMENT: (CYBA) CADMIUM
THREAD CLASS: (AAJD) 3A
THREAD DIRECTION: (AAJF) RIGHT-HAND
THREAD LENGTH: (AASA) 0.437 INCHES NOMINAL
THREAD QUANTITY PER INCH: (CMLP) 32
THREAD SERIES DESIGNATOR: (THSD) UNC