Model: A51B20821-1

Rod End Plain Bearing

Properties:

Thread Class
3a
Thread Direction
Right-hand
Shank Style
Externally threaded
Overall Length
3.9500 inches
Bore Diameter
Between 0.4995 inches and 0.5000 inches
Outer Member Outside Diameter
1.5000 inches
Bore Center To Shank End Distance
3.2000 inches
Outer Member Width
Between 0.5000 inches and 0.5100 inches
Inner Member Width
Between 0.6230 inches and 0.6250 inches
Shank Thread Length
1.9500 inches
Thread Diameter
0.500 inches
Thready Qty Per Inch (tpi)
20
Material
Plastic polytetrafluoroethylene race liner
Material
Steel comp 440c inner member
Material
Steel comp e4340 rod end body
Material
Steel comp 630 race insert or steel comp 631 race insert
Material
Steel comp 630 or steel comp 631 race insert
Material Specification
Ams 5610 assn standard single material response inner member
Material Specification
Ams5643 assn standard 1st material response race insert or ams 5528 or aisi 410, fscm 73428 assn standard 2nd material response race insert
Material Specification
Mil-s-5000 military specification single material response rod end body
Material Specification
Ams5643 assn standard 1st material response or ams 5528 or aisi 410, fscm 73428 assn standard 2nd material response race insert
Surface Treatment
Cadmium rod end body and chromate rod end body
Surface Treatment
Cadmium and chromate rod end body
Surface Treatment Specification
Mil-c-8837, type 2, class 1 military specification all treatment responses rod end body
Style Designator
Ball type
Thread Series Designator
Unjf
NSN
3120-00-107-1149
Part Number
A51B20821-1
Description
Bearing,plain,rod End
CAGE
25826

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 A51B20821-1 NSN 3120-00-107-1149

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114850
UFC:
58880
LTL:
70.0
LCL:
--
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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