Product Details | AIRFRAME BALL BEARING

3110-01-251-0029 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: KP37BE8081, MILB7949, MIL-B-7949, 3110-01-251-0029, 01-251-0029, 3110012510029, 012510029

Bearings | Bearings, Antifriction, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 11 MAR 1987 01-251-0029

Drawings & Photos | NSN 3110-01-251-0029


Cross Reference | NSN 3110-01-251-0029

Part Number Cage Code Manufacturer
KP37BE8081 06144 INDUSTRIAL TECTONICS BEARINGS CORPORATION
KP37BE8081 21335 TIMKEN COMPANY, THE DIV TIMKEN AEROSPACE
MIL-B-7949 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 3110-01-251-0029

Characteristic Specifications
MATERIAL STEEL COMP E51100 OR STEEL COMP E52100 BALL STEEL COMP E52100 INNER RING STEEL COMP E52100 OUTER RING STEEL COMP E52100 RETAINER PLASTIC POLYTETRAFLUOROETHYLENE SEAL
MATERIAL DOCUMENT AND CLASSIFICATION 66 UNS G51986 OR G93106 FED STD ALL MATERIAL RESPONSES BALL 66 UNS G93106 FED STD SINGLE MATERIAL RESPONSE INNER RING 66 UNS G93106 FED STD SINGLE MATERIAL RESPONSE OUTER RING 66 UNS S41000 FED STD SINGLE MATERIAL RESPONSE RETAINER AMS 3652 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 3666 ASSN STD SINGLE MATERIAL RESPONSE SEAL
SURFACE TREATMENT CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE ALL EXTERNAL/EXPOSED METAL SURFACES
STYLE DESIGNATOR 196 SINGLE ROW INNER RING EXTENDED BOTH SIDES
BORE DIAMETER 2.3120 INCHES MINIMUM AND 2.3130 INCHES MAXIMUM
OVERALL OUTSIDE DIAMETER 3.0615 INCHES MINIMUM AND 3.0625 INCHES MAXIMUM
OUTER RING WIDTH 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM
INNER RING WIDTH 0.4325 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM
LUBRICATION MATERIAL LUBRICANT
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION E8081 MFR REF SINGLE MATERIAL RESPONSE
STANDARD TOLERANCE DESIGNATION AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
RETAINER FABRICATION METHOD PRESSED
SEAL QUANTITY 2
BEARING SEAL TYPE CONTACT
LOAD DIRECTION RADIAL
INTERNAL FIT-UP DESIGNATION STANDARD
FEATURES PROVIDED EXTRA LIGHT DUTY SERIES
SPECIFICATION/STANDARD DATA 81349-MIL-B-7949 GOVERNMENT SPECIFICATION
DEPARTURE FROM CITED DOCUMENT AS MODIFIED BY LUBRICATION
III FUNCTIONAL DESCRIPTION RADIAL TORQUE TUBE TYPE CONTROL
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-B-7949

Restrictions/Controls & Freight Information | NSN 3110-01-251-0029

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
No Freight Information