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NSN 5306-01-137-8943, 5306011378943
BOLT,CLOSE TOLERANCE

Federal Supply Classification
FSC 5306 - Bolts
National Item Identification Number
NIIN 011378943
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.
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DLMS® Summary

National Stock Number 5306-01-137-8943

National Stock Number (NSN) 5306-01-137-8943, or NIIN 011378943, (bolt,close tolerance) was assigned September 4, 1982 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. 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, with the most recent procurement date of Dec 30, 2009. There has been one contract issued for this part number, with 3 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM5AY08D0261, SPM5AY08D0261, SPM5AY08D0261, SPM5AY08D0261, SPM5AY08D0261. The total value of the awarded contracts has been US$ 34,452.87.

This NSN is fairly common among different weapons systems, belonging to 14 different platforms.

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 Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

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 5306011378943 does not contain precious metals.

This NSN is associated to Schedule B 7508900000: other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire). The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332999: all other miscellaneous fabricated metal product manufacturing.

This information was last updated on .


Technical Characteristics

EXTENDED WASHER DIAMETER
(AATC) 0.438 INCHES NOMINAL
EXTENDED WASHER THICKNESS
(AATD) 0.060 INCHES MINIMUM
FASTENER LENGTH
(AASB) 1.012 INCHES NOMINAL
GRIP DIAMETER
(AAUR) 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
GRIP LENGTH
(ANEE) 0.429 INCHES NOMINAL
HARDNESS RATING
(CQFM) 34.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT
(AASU) 0.303 INCHES NOMINAL
HEAD STYLE
(AASK) DOUBLE HEXAGON EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AMS 5708 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) NICKEL ALLOY OVERALL
MINIMUM TENSILE STRENGTH
(CQBC) 175000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH
(CQHQ) 115000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
WIDTH BETWEEN FLATS
(AATB) 0.312 INCHES NOMINAL
SURFACE FINISH
(CSYM) 32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH
(CSYM) 32.0 MICROINCHES GRIP
SURFACE FINISH
(CSYM) 32.0 MICROINCHES THREADS
THREAD CLASS
(AAJD) 3A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 0.583 INCHES NOMINAL
THREAD SERIES DESIGNATOR
(THSD) UNJF
THREAD QUANTITY PER INCH
(CMLP) 28

Manufacturer Part Numbers


Related Inventory

MS9724-08
Readily Available


 
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