Product Details | DUPLEX BALL BEARING

3110-00-156-6801 Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.

Part Alternates: AA59626 , AA59626206JABTU, AA59626-206JABTU , FF-B-171/22, FFB171/22J06A2C, FFB17122, FFB17122J06A2C, 20306DT, 20306DU, 3110-00-156-6801, 00-156-6801, 3110001566801, 001566801

Bearings | Bearings, Antifriction, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 01 JAN 1963 00-156-6801

Drawings & Photos | NSN 3110-00-156-6801


Demand History | NSN 3110-00-156-6801

Part Number Request Date QTY Origin
3110-00-156-6801 2025-12-338 37 DIBBS
3110-00-156-6801 2025-11-317 6 DIBBS
3110-00-156-6801 2025-11-308 6 DIBBS
3110-00-156-6801 2025-09-266 3 DIBBS
3110-00-156-6801 2025-08-231 5 DIBBS
3110-00-156-6801 2025-07-197 3 DIBBS
3110-00-156-6801 2025-06-161 23 DIBBS
3110-00-156-6801 2012-04-110 38 DIBBS
3110-00-156-6801 2010-09-270 25 DIBBS
3110-00-156-6801 2010-08-222 15 DIBBS
3110-00-156-6801 2008-10-298 25 DIBBS
3110-00-156-6801 2008-08-232 24 DIBBS
3110-00-156-6801 2008-06-161 72 DIBBS
3110-00-156-6801 2008-03-87 72 DIBBS
3110-00-156-6801 2008-03-72 72 DIBBS

Cross Reference | NSN 3110-00-156-6801

Part Number Cage Code Manufacturer
20306DT 24617 GENERAL MOTORS CORP
20306DT 43334 GENERAL MOTORS CORP DELCO MORAINE NDH DIV
20306DU 43334 GENERAL MOTORS CORP DELCO MORAINE NDH DIV
AA59626 58536 FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES
AA59626-206JABTU 58536 FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES
FF-B-171/22 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
FFB171/22J06A2C 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 3110-00-156-6801

Characteristic Specifications
MATERIAL STEEL OVERALL
STYLE DESIGNATOR 90A UNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE
OVERALL WIDTH 19.0 MILLIMETERS NOMINAL
BORE DIAMETER 30.00 MILLIMETERS NOMINAL
OVERALL OUTSIDE DIAMETER 72.00 MILLIMETERS NOMINAL
STANDARD TOLERANCE DESIGNATION ABEC NO.1
SURFACE FINISH GROUND
RETAINER FABRICATION METHOD PRESSED
LOAD DIRECTION ANGULAR
BEARING PRELOAD DESIGNATION LIGHT
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FF-B-171/22

Restrictions/Controls & Freight Information | NSN 3110-00-156-6801

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 114820 BEARINGS/BUSHINGS NOI BALL/ROLLER
Less than car load rating
Less than truck load rating P 77.5
Water commodity Code 742 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 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 3110-00-156-6801

Category Code Description
Materiel Category and Inventory ManagerT Industrial Supplies (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
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
PR : Pair
Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Price ValidationV The current standard price has been validated.
  • The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range.
  • The item was procured under open competition and under the competitive arena the price is considered fair and reasonable.
  • ZOP or Standard price challenges are permissible but must be supported by adequate justification.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
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
PR : Pair
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
PR : Pair