Product Details | SHOULDERED SHAFT

3040-01-486-4251 A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (AA), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see AXLE(1), SHOULDERED. For items not having any of the above conditions see PIN, SHOULDER, HEADLESS. Excludes SHAFT(1), STRAIGHT; and AXLE(1), STRAIGHT.

Part Alternates: H6437003, H643-7003, H643700367, H643-7003-67, 342706732267, 342-7067322-67, 7067322, 3040-01-486-4251, 01-486-4251, 3040014864251, 014864251

Mechanical Power Transmission Equipment | Miscellaneous Power Transmission Equipment

Supply Group (FSG) NSN Assign. NIIN
30 28 JUN 2001 01-486-4251

Drawings & Photos | NSN 3040-01-486-4251


Demand History | NSN 3040-01-486-4251

Part Number Request Date QTY Origin
3040-01-486-4251 2025-10-287 3 DIBBS
3040-01-486-4251 2025-10-274 3 DIBBS
3040-01-486-4251 2025-09-261 1 DIBBS
3040-01-486-4251 2023-08-227 1 DIBBS
3040-01-486-4251 2022-06-178 1 DIBBS
3040-01-486-4251 2022-06-172 1 DIBBS
3040-01-486-4251 2022-06-164 1 DIBBS

Cross Reference | NSN 3040-01-486-4251

Part Number Cage Code Manufacturer
342-7067322-67 53711 NAVAL SEA SYSTEMS COMMAND
7067322 53711 NAVAL SEA SYSTEMS COMMAND
H643-7003 96169 ELECTRIC BOAT CORPORATION
H643-7003-67 96169 ELECTRIC BOAT CORPORATION

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Technical Data | NSN 3040-01-486-4251

Characteristic Specifications
MATERIAL STEEL
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE
FIRST END STYLE 12 EXTERNAL THREADED
FIRST END DIAMETER 1.1250 INCHES NOMINAL
FIRST END EXTERNAL THREAD LENGTH 2.1400 INCHES NOMINAL
END SIMILARITY NOT IDENTICAL
SECOND END STYLE 86 CROSS DRILLED HOLE AND SPLINED
SECOND END DIAMETER 0.9970 INCHES MINIMUM AND 0.9980 INCHES MAXIMUM
SECOND END SPLINE LENGTH 1.2900 INCHES NOMINAL
SECOND END SPLINE MINOR DIAMETER 0.8339 INCHES MINIMUM AND 0.8340 INCHES MAXIMUM
SECOND END SPLINE MAJOR DIAMETER 0.9980 INCHES NOMINAL
SECOND END HOLE DIAMETER 0.4060 INCHES NOMINAL
SECOND END SPLINE QUANTITY 10
LARGEST STEP DIAMETER 1.500 INCHES NOMINAL
OVERALL LENGTH 5.6300 INCHES NOMINAL
STEP QUANTITY 5
SPECIAL FEATURES FIRST END IS COUNTEREDBORED 0.125 INCH DIA. X 2.560 INCH DEEP. SHAFT HAS 0.125 INCH BORE DRILLED 2.530 INCHS ON SIDE CENTERLINE FROM FIRST END 0.500 INCH DEEP TO INTERSECT WITH END COUNTERBORE
III END ITEM IDENTIFICATION LOS ANGELES CLASS SSN (688)
III PART NAME ASSIGNED BY CONTROLLING AGENCY SHAFT, HULL VALVE GAGGING

Restrictions/Controls & Freight Information | NSN 3040-01-486-4251

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:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 126900 POWER TRANS SHAFTING/SHAFTS
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 593 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
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

Management | NSN 3040-01-486-4251

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each