Product Details | SPHERICAL PLAIN BEARING

3120-00-840-2729 A detachable part in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. It may be divided into two or more segments of 180 degrees (3.141 radians) or less. The item has a cylindrical bore and is basically spherical in its exterior design to allow for shaft misalignment. Excludes BEARING, PLAIN, SELF-ALIGNING.

Part Alternates: 204076168001, 204-076-168-001, 2040761681, 204-076-168-1, 3120-00-840-2729, 00-840-2729, 3120008402729, 008402729

Bearings | Bearings, Plain, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 01 JAN 1962 00-840-2729

Drawings & Photos | NSN 3120-00-840-2729


Cross Reference | NSN 3120-00-840-2729

Part Number Cage Code Manufacturer
204-076-168-001 97499 BELL HELICOPTER TEXTRON INC.
204-076-168-1 97499 BELL HELICOPTER TEXTRON INC.

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Technical Data | NSN 3120-00-840-2729

Characteristic Specifications
MATERIAL STEEL COMP E52100 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING 60.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM OVERALL
SURFACE TREATMENT CHROMIUM LEFT END SURFACE CHROMIUM RIGHT END SURFACE CHROMIUM SPHERICAL SURFACE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-C-320,CL 2 FED SPEC SINGLE TREATMENT RESPONSE LEFT END SURFACE QQ-C-320,CL 2 FED SPEC SINGLE TREATMENT RESPONSE RIGHT END SURFACE QQ-C-320,CL 2 FED SPEC SINGLE TREATMENT RESPONSE SPHERICAL SURFACE
STYLE DESIGNATOR 15C SOLID
OVERALL LENGTH 1.3070 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM
BODY INSIDE DIAMETER 1.4995 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM
SPHERICAL BODY DIAMETER 2.1540 INCHES MINIMUM AND 2.1560 INCHES MAXIMUM
CORNER SHAPE SQUARE INSIDE RIGHT CORNER SQUARE INSIDE LEFT CORNER
SURFACE FINISH 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY 63.0 MICROINCHES LEFT END SURFACE 63.0 MICROINCHES RIGHT END SURFACE 8.0 MICROINCHES SPHERICAL SURFACE
TEST DATA DOCUMENT 97499-4075 SPECIFICATION AND 97499-4092 SPECIFICATION
MANUFACTURERS CODE 97499
DESIGN CONTROL REFERENCE 204-076-168-1

Restrictions/Controls & Freight Information | NSN 3120-00-840-2729

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: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 114850 BEARING/BUSHING O/T BALL/ROLLER I/S
Less than car load rating W Rating Variable
Less than truck load rating Q 70.0
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 Y Protected cargo, other than above, including sensitive cargo requiring hand-to-hand receipt and/or security precautions.
Special Handling Code 5 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 3120-00-840-2729

Category Code Description
Cognizance Codes9WNavy-owned stocks of material managed by the Army within the Army Troop Support and Aviation Materiel Readiness Command
Naval Inventory Control Point, Mechanicsburg
Source of SupplyB17US Army Aviation and Missile Command (Air)
ATTN: AMSMI-LC-MM-C
Redstone Arsenal, AL 35898-5230
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each