Model: MS21231-5

Self-aligning Plain Bearing

Properties:

Bore Diameter
Between 0.3120 inches and 0.3125 inches
Outer Member Outside Diameter
Between 0.6870 inches and 0.6875 inches
Outer Member Width
Between 0.3120 inches and 0.3220 inches
Inner Member Width
Between 0.4350 inches and 0.4370 inches
Static Radial Load Rating
9400 pounds
Hardness Rating
23.0 rockwell c outer race member
Hardness Rating
55.0 rockwell c inner member
Material
Steel comp 440c inner member
Material
Steel outer race member
Style Designator
Without insert or liner
NSN
3120-00-079-9974
Part Number
MS21231-5
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 MS21231-5 NSN 3120-00-079-9974

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114820
UFC:
58860
LTL:
77.5
LCL:
77.5
WCC:
742
TCC:
Z
SHC:
9
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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