Model: B12-1681

Rod End Plain Bearing

Properties:

Thread Class
3b
Thread Direction
Left-hand
Shank Style
Internally threaded w/bead and wrench flats and inspection hole
Overall Length
Between 1.7500 inches and 1.8125 inches
Bore Diameter
Between 0.2495 inches and 0.2515 inches
Outer Member Outside Diameter
Between 0.8025 inches and 0.8225 inches
Bore Center To Shank End Distance
Between 1.3438 inches and 1.4062 inches
Outer Member Width
Between 0.2990 inches and 0.3090 inches
Inner Member Width
Between 0.4325 inches and 0.4375 inches
Shank Thread Length
Between 0.7188 inches and 0.8125 inches
Inspection Hole Center To End Distance
Between 0.3075 inches and 0.3175 inches
Shank Width Across Wrench Flats
Between 0.4588 inches and 0.4788 inches
Static Radial Load Rating
2948 pounds
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Hardness Rating
60.0 rockwell c inner member
Lubrication Feature
Groove external inner member
Material
Copper alloy 360 race insert or copper alloy 332 race insert
Material
Steel comp 12l14 rod end body
Material
Steel comp e52100 inner member
Material Specification
Ams 6440, uns g52986 assn standard single material response inner member
Material Specification
Astm a108, uns g12144 assn standard single material response rod end body
Material Specification
Qq-b-626, uns c36000 federal specification 1st material response race insert or ams 4550, uns c33200 assn standard 2nd material response race insert
Surface Treatment
Chromium inner member
Surface Treatment
Cadmium rod end body
Surface Treatment Specification
Qq-c-320, class 2 federal specification single treatment response inner member
Surface Treatment Specification
Qq-p-416, type 1, class 2 federal specification single treatment response rod end body
Style Designator
Ball type
Thread Series Designator
Unf
NSN
3120-01-260-7268
Part Number
B12-1681
Description
Bearing,plain,rod End
CAGE
73134

A detachable assembly 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. The outer member of the assembly is modified to provide a shank. The inner member may be either a plain spherical bearing or a sleeve bearing. Excludes bearing, plain, spherical and bearing, plain, self-aligning.

Part B12-1681 NSN 3120-01-260-7268

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
13209
FIIG:
A045A0
Concept No.:
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8483308055
  • SITC: 74822
  • End Use: Industrial machines, other
  • NAICS: 336310
  • USDA: 1

Freight Class: Transmission shafts: bearing housings, plain shaft bearings with housing, rod end bearings

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