Product Details | AIRFRAME BALL BEARING

3110-00-937-1878 A cylindrical item in which the inner or outer ring turns upon row(s) of hardened BALL, BEARING which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes BEARING, BALL, ANNULAR.

Part Alternates: MSP4E9105, MKSP4E9105, MKSP4E-9105, AAMKSP4E9106A, C525KS4, KSP42, KSP-4-2, 3110-00-937-1878, 00-937-1878, 3110009371878, 009371878

Bearings | Bearings, Antifriction, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 18 NOV 1966 00-937-1878

Drawings & Photos | NSN 3110-00-937-1878


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Technical Data | NSN 3110-00-937-1878

Characteristic Specifications
MATERIAL STEEL COMP 440C BALL STEEL COMP 440C INNER RING STEEL COMP 440C OUTER RING RUBBER SYNTHETIC SEAL
STYLE DESIGNATOR 198 SINGLE ROW SELF ALIGNING SINGLE ROW INNER RING EXTENDED BOTH SIDES
BORE DIAMETER 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM
OVERALL OUTSIDE DIAMETER 0.9009 INCHES MINIMUM AND 0.9014 INCHES MAXIMUM
OUTER RING WIDTH 0.3350 INCHES NOMINAL
INNER RING WIDTH 0.4790 INCHES MINIMUM AND 0.4840 INCHES MAXIMUM
LUBRICATION MATERIAL GREASE
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
SEAL QUANTITY 2
BEARING SEAL TYPE CONTACT
ALIGNMENT TYPE SELF-ALIGNING
SELF-ALIGNMENT LOCATION INTERNAL
LOAD DIRECTION RADIAL
SPECIAL FEATURES 10 DEG SELF ALIGNMENT IN EITHER DIRECTION,40 TO 50 PCT FULL OF SPECIFIED LUBE,RINGS AND BALLS MODIFIED BY ADDITION OF 4 PCT MOLYBDENUM REPLACING PART OF THE CHROMIUM,RINGS AND BALLS HEAT STABILIZED TO 400 DEG F,RADIAL CLEARANCE 0.0001 IN. MIN TO 0.0004 IN. MAX,NO LOAD STARTING TORQUE 272 IN. OZ

Restrictions/Controls & Freight Information | NSN 3110-00-937-1878

Category Code Description
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.
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 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 KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
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