NSN 5306-01-273-4383, 5306012734383
BOLT,EXTERNALLY RELIEVED BODY

Federal Supply Classification: FSC 5306 - Bolts
National Item Identification Number: NIIN 012734383
Codification Country: United States
Item Name Code: INC 06675
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

Manufacture or supply this part?
Join our growing community of certified suppliers.

Let Us Know

CALL ABOUT NSN 5306-01-273-4383

Our client representatives are standing by to help fulfill your request.

+1-321-773-5710

REQUEST QUOTE for 5306-01-273-4383

Have a list that needs to be quoted? Upload it here.

Upload a List

DLMS^® Summary

National Stock Number 5306-01-273-4383

National Stock Number (NSN) 5306-01-273-4383, or NIIN 012734383, (bolt,externally relieved body) was assigned February 25, 1988 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. None of the associated 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.

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 Mar 29, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government does not have adequate data, lacks rights to data, or both, needed to purchase this part from additional sources. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 06675. [AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, AND WHOSE UNTHREADED PORTION HAS BEEN MACHINED OR GROUND IN ONE OR MORE PLACES OR OVER ITS ENTIRE LENGTH TO A MAXIMUM DIAMETER LESS THAN THE MINIMUM PITCH DIAMETER OF THE THREAD (EXCLUDES:UNDERCUTS FOR THREAD RELIEF). IT IS NO. 10 (0.190 IN.) (5 MM) OR LARGER IN SIZE AND HAS A HEAD WHICH IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER OR DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES:BOLT, INTERNAL WRENCHING AND THUMBSCREW. SEE ALSO SCREW, EXTERNALLY RELIEVED BODY.]. 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 5306012734383 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER: (AAWK) 1.391 INCHES NOMINAL
EIGHTH DIAMETER FROM HEAD: (CRPX) 0.188 INCHES NOMINAL
DISTANCE FROM CENTERLINE TO FLAT: (AASY) 0.172 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: (AAWH) 0.484 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER: (AAWL) 2.094 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF NINTH DIAMETER: (CSNY) 4.672 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: (AAWJ) 1.188 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SIXTH DIAMETER: (CTCC) 3.281 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SEVENTH DIAMETER: (CRRP) 3.484 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF TENTH DIAMETER: (CWHH) 5.219 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF EIGHTH DIAMETER: (CWFL) 4.281 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIFTH DIAMETER: (AAWM) 2.484 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY: (CSNG) 11
FASTENER LENGTH: (AASB) 10.734 INCHES NOMINAL
FIFTH DIAMETER FROM HEAD: (AAWG) 0.250 INCHES NOMINAL
FIRST DIAMETER FROM HEAD: (AAWC) 0.250 INCHES NOMINAL
FOURTH DIAMETER FROM HEAD: (AAWF) 0.188 INCHES NOMINAL
HEAD DIAMETER: (AASL) 0.375 INCHES NOMINAL
HEAD HEIGHT: (AASU) 0.281 INCHES NOMINAL
HEAD STYLE: (AASK) DEE CHAMFER
NINTH DIAMETER FROM HEAD: (CSDQ) 0.250 INCHES NOMINAL
NOMINAL THREAD DIAMETER: (AHYM) 0.250 INCHES
POINT STYLE: (ABQJ) FLAT
SECOND DIAMETER FROM HEAD: (AAWD) 0.188 INCHES NOMINAL
SEVENTH DIAMETER FROM HEAD: (CTSS) 0.250 INCHES NOMINAL
SIXTH DIAMETER FROM HEAD: (CWAF) 0.188 INCHES NOMINAL
SPECIAL FEATURES: (FEAT) PLUS TWELVE EACH ALTERNATING UNDERCUTS AND SHOULDERS OF 0.188 AND 0.250DIAMETERS RESPECTIVELY,DISTANCES FROMBEGINNING OF ELEVENTH DIAMETER FROM LARGEST BEARING SURFACE OF HEAD TO THE END OF THE TWENTY-SECOND DIAMETER ARE 5.422,5.953,6.156,6.688,7.172,7.734,7.938,8.484,8.703,9.203,9.641,AND 9.859
TENTH DIAMETER FROM HEAD: (CRJB) 0.188 INCHES NOMINAL
THIRD DIAMETER FROM HEAD: (AAWE) 0.250 INCHES NOMINAL
THREAD CLASS: (AAJD) 3A
THREAD DIRECTION: (AAJF) RIGHT-HAND
THREAD LENGTH: (AASA) 0.875 INCHES NOMINAL
THREAD SERIES DESIGNATOR: (THSD) UNF
THREAD QUANTITY PER INCH: (CMLP) 28
ERR DEFAULT: (CSNY) ERR DEFAULT
ERR DEFAULT: (CWHH) ERR DEFAULT
ERR DEFAULT: (CRRP) ERR DEFAULT
ERR DEFAULT: (CRJB) ERR DEFAULT
ERR DEFAULT: (CWFL) ERR DEFAULT
ERR DEFAULT: (CRPX) ERR DEFAULT
ERR DEFAULT: (CSDQ) ERR DEFAULT
ERR DEFAULT: (CTSS) ERR DEFAULT