Product Details | DUPLEX BALL BEARING

3110-01-091-3957 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: M9112WOVM101, M9112WOVM-101, SB1137101, SB1137-101, 112KD400B, 112-KD-400-B, 3M9112WOVMMBRDBA2232, 3110-01-091-3957, 01-091-3957, 3110010913957, 010913957

Bearings | Bearings, Antifriction, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 07 MAR 1980 01-091-3957

Drawings & Photos | NSN 3110-01-091-3957


Demand History | NSN 3110-01-091-3957

Part Number Request Date QTY Origin
SB1137-101 2025-09-245 20 DIBBS
SB1137-101 2025-06-154 79 DIBBS
SB1137-101 2024-06-154 17 DIBBS
SB1137-101 2022-10-293 126 DIBBS
SB1137-101 2022-04-118 84 DIBBS
3110-01-091-3957 2020-10-304 1 DIBBS-RFPs
3110-01-091-3957 2018-11-316 65 DIBBS
3110-01-091-3957 2017-07-209 1 DIBBS-RFPs
3110-01-091-3957 2017-05-127 65 DIBBS
3110-01-091-3957 2017-03-74 65 DIBBS
3110-01-091-3957 2015-04-98 10 DIBBS
3110-01-091-3957 2015-01-13 15 DIBBS

Cross Reference | NSN 3110-01-091-3957

Part Number Cage Code Manufacturer
112-KD-400-B 38443 SKF USA INC DBA SKF AEROENGINE NORTH AMERICA
3M9112WOVMMBRDBA2232 21335 TIMKEN COMPANY, THE DIV TIMKEN AEROSPACE
M9112WOVM-101 21335 TIMKEN COMPANY, THE DIV TIMKEN AEROSPACE
SB1137-101 36069 FAG AEROSPACE INC
SB1137-101 38443 SKF USA INC DBA SKF AEROENGINE NORTH AMERICA
SB1137-101 78118 MPB CORPORATION DBA TIMKEN AEROSPACE
SB1137-101 78286 SIKORSKY AIRCRAFT CORPORATION

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Technical Data | NSN 3110-01-091-3957

Characteristic Specifications
MATERIAL STEEL BALL STEEL INNER RING STEEL OUTER RING COPPER ALLOY 864 RETAINER
MATERIAL DOCUMENT AND CLASSIFICATION AMS 6444 ASSN STD SINGLE MATERIAL RESPONSE BALL AMS 6444 ASSN STD SINGLE MATERIAL RESPONSE INNER RING AMS 6444 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING ASTM-B-147,81346 ASSN STD SINGLE MATERIAL RESPONSE RETAINER
STYLE DESIGNATOR 92A NON-LOADING GROOVE, NON-SEPARABLE, TANDEM MOUNTING
OVERALL WIDTH 1.3973 INCHES MINIMUM AND 1.4173 INCHES MAXIMUM
BORE DIAMETER 2.3618 INCHES MINIMUM AND 2.3622 INCHES MAXIMUM
OVERALL OUTSIDE DIAMETER 3.7398 INCHES MINIMUM AND 3.7402 INCHES MAXIMUM
SURFACE FINISH GROUND
LOAD DIRECTION RADIAL
INTERNAL CLEARANCE 0.0027 INCHES MINIMUM RADIAL AND 0.0033 INCHES MAXIMUM RADIAL
SPECIAL FEATURES STABILIZED FOR OPERATION FROM M65DEG F TO P375 DEG F
TEST DATA DOCUMENT 78286-SB1137-101 DRAWING
MANUFACTURERS CODE 78286
MFR SOURCE CONTROLLING REFERENCE SB1137-101

Restrictions/Controls & Freight Information | NSN 3110-01-091-3957

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:FThe item is an Aviation Critical Safety Item/Flight Safety Critical Aircraft Part ((ACSI/FSCAP).
Category Code Description
NMF Description 114820 BEARINGS/BUSHINGS NOI BALL/ROLLER
Less than car load rating P 77.5
Less than truck load rating P 77.5
Water commodity Code 742 unknown
Originating Activity Code CT U.S. Army Aviation and Missile Command (AIR)
Redstone Arsenal, AL 35898-5230
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 3110-01-091-3957

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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
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.
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each