Model: MS21231-9

Self-aligning Plain Bearing

Properties:

Bore Diameter
Between 0.5620 inches and 0.5625 inches
Outer Member Outside Diameter
Between 1.1245 inches and 1.1250 inches
Outer Member Width
Between 0.5310 inches and 0.5410 inches
Inner Member Width
Between 0.6850 inches and 0.6870 inches
Static Radial Load Rating
34400 pounds
Hardness Rating
23.0 rockwell c outer race member and 35.0 rockwell c outer race member
Hardness Rating
55.0 rockwell c inner member and 62.0 rockwell c inner member
Material
Steel comp 440c inner member
Material
Steel comp 630 outer race member or steel comp 631 outer race member or steel comp 410 outer race member
Style Designator
With insert and/or liner
NSN
3120-00-451-9838
Part Number
MS21231-9
Description
Bearing,plain,self-aligning
CAGE
96906

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 MS21231-9 NSN 3120-00-451-9838

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:
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:
5
ACC:
Trailers/Vehicles

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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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