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NSN 5306-01-046-3261, 5306010463261
BOLT,CLOSE TOLERANCE

Federal Supply Classification
FSC 5306 - Bolts
National Item Identification Number
NIIN 010463261
Codification Country
United States
Item Name Code
INC 27851
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 5306-01-046-3261

National Stock Number (NSN) 5306-01-046-3261, or NIIN 010463261, (bolt,close tolerance) was assigned August 15, 1977 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, with the most recent procurement date of Oct 17, 2014. There have been 8 contracts issued for this part number, with 9 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE5E415V0445, SPE5E415V0445, SPE5E415V0445, SPE5E415V0445, SPE5E414V7720. The total value of the awarded contracts has been US$ 58,078.22.

This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 13, 2015, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 27851. [AN EXTERNALLY THREADED FASTENER WHOSE UNTHREADED PORTION IS OF A SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001) OF AN INCH (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS ONE INCH (25 MM) OR LESS IN DIAMETER. ITEMS OVER ONE INCH (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN-THOUSANDTHS (0.0015) OF AN INCH (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001) OF AN INCH (0.025 MM) BELOW THE MINIMUM SHANK DIAMETER, BUT NOT BELOW THE MINIMUM MAJOR DIAMETER FOR APPLICABLE CLASS OF FIT, AS SHOWN IN THE SCREW THREAD STANDARDS, FED STD H28 AND/OR OTHER NATIONALLY RECOGNIZED STANDARDS. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER, NOR IS IT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS HAVING CLOSE TOLERANCE, AND FABRICATED FROM MATERIAL HAVING 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH, SEE BOLT, SHEAR. FOR ITEMS FABRICATED FROM MATERIAL HAVING LESS THAN 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH AND NOT HAVING A CLOSE TOLERANCE, SEE BOLT, MACHINE.]. 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 5306010463261 contains an unknown precious metal.

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

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER
(CRZS) 1.818 INCHES MINIMUM FIRST HOLE AND 1.848 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH
(AASB) 1.918 INCHES MINIMUM AND 1.938 INCHES MAXIMUM
GRIP DIAMETER
(AAUR) 0.2483 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM
GRIP LENGTH
(ANEE) 1.500 INCHES MINIMUM AND 1.516 INCHES MAXIMUM
HARDNESS RATING
(CQFM) 36.0 ROCKWELL C MINIMUM OVERALL AND 41.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT
(AASU) 0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM
HEAD STYLE
(AASK) UNDERCUT HEXAGON
NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
MATERIAL
(MATT) STEEL COMP E4340 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 8740 OVERALL
SHANK UNTHREADED HOLE DIAMETER
(AAWB) 0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURES
(FEAT) RETAINING RING ON SHANK
THREAD CLASS
(AAJD) 3A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 0.282 INCHES MINIMUM AND 0.333 INCHES MAXIMUM
THREAD SERIES DESIGNATOR
(THSD) UNJF
THREAD QUANTITY PER INCH
(CMLP) 28
WIDTH BETWEEN FLATS
(AATB) 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
SURFACE FINISH
(CSYM) 32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH
(CSYM) 32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) CADMIUM OVERALL AND CHROMATE OVERALL

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