Product Details | MACHINE BOLT

5306-00-180-0309 An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Part Alternates: AN50910R27, AN509-10R27 , AN50910R27REV2, AN509-10R27REV2 , AN631A, AN6-31A, MILS7839 , 401 410, 401410, 5306-00-180-0309, 00-180-0309, 5306001800309, 001800309

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-180-0309

Drawings & Photos | NSN 5306-00-180-0309


Demand History | NSN 5306-00-180-0309

Part Number Request Date QTY Origin
5306-00-180-0309 2025-03-76 106 DIBBS
AN631A 2025-01-31 125 United States
AN631A 2024-09-263 50 United States
AN631A 2024-09-263 50 United States
AN631A 2024-09-263 50 United States
AN631A 2024-06-164 50 United States
AN631A 2024-04-94 100 United States
AN631A 2023-12-354 80 United States
AN631A 2023-12-352 60 United States
AN6-31A 2014-05-142 1000 United States
5306-00-180-0309 2008-09-268 10 US

Cross Reference | NSN 5306-00-180-0309

Part Number Cage Code Manufacturer
401 410 77294 PIPER AIRCRAFT INC.
AN6-31A 88044 AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE

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Technical Data | NSN 5306-00-180-0309

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.375 INCHES
THREAD QUANTITY PER INCH 24
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.641 INCHES MINIMUM
FASTENER LENGTH 3.203 INCHES NOMINAL
MATERIAL STEEL COMP 4037 OR STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION MIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT CADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
HARDNESS RATING 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH 125000 POUNDS PER SQUARE INCH
HEAD STYLE C1 HEXAGON
HEAD HEIGHT 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM
WIDTH BETWEEN FLATS 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
GRIP LENGTH 2.562 INCHES NOMINAL
FEATURES PROVIDED FINISHED HEAD
MANUFACTURERS CODE 88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE AN6-31A

Restrictions/Controls & Freight Information | NSN 5306-00-180-0309

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 096640 SCREWS, IRON OR STEEL
Less than car load rating
Less than truck load rating Q 70.0
Water commodity Code 713 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable