Model: 20-129

Self-aligning Plain Bearing

Special Features:

Anti-fretting buffer: l1281 polytetrafluoroethylene/nylon 0.010 laminate

Properties:

Bore Diameter
Between 0.3745 inches and 0.3750 inches
End Application
V-22 aircraft
Outer Member Outside Diameter
Between 0.8240 inches and 0.8245 inches
Outer Member Width
Between 0.3115 inches and 0.3125 inches
Inner Member Width
Between 0.4055 inches and 0.4060 inches
Hardness Rating
28.0 rockwell c and 37.0 rockwell c inner member
Hardness Rating
55.0 rockwell c and 62.0 rockwell c outer race member
Lubrication Feature
Self-lubricating liner race liner
Part Name Assigned By Controlling Agency
Bearing, plain, spherical, self-aligning, self-lubricating, narrow, grooved, anti-fretting buffer on race
Material
Steel comp 440c outer race member
Material
Stainless steel inner member
Material Specification
Ams5880 or ams5618 assn standard single material response outer race member
Material Specification
Ams5643, 17-4ph assn standard single material response inner member
Surface Treatment
Passivate
Surface Treatment Specification
Ams2700 or astm a967 assn standard single treatment response
Style Designator
With insert and/or liner with staking groove
Supplementary Features
Static radial load limit is 11450 lb; recommended housing bore diameter is 0.8245 inch; tem range is -65 degrees f to 300 degrees f
NSN
3120-01-616-0673
Part Number
20-129
Description
Bearing,plain,self-aligning
CAGE
97499

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 item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes bearing, plain, rod end and bearing, plain, spherical.

Part 20-129 NSN 3120-01-616-0673

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
13208
FIIG:
A045A0
Concept No.:
App. Key:
B
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:
A
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:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 8482300040
  • SITC: 74630
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Spherical roller bearings, single row

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