Model: MS21221-4K

Rod End Roller Bearing

Special Features:

Internal clearance 0.0002 in. Min 0.0010 in. Max; keyway in shank

Properties:

Thread Class
3a
Thread Direction
Right-hand
Shank Diameter
0.3750 inches
Shank Style
Externally threaded
Overall Length
Between 2.3700 inches and 2.3900 inches
Bore Diameter
Between 0.2495 inches and 0.2500 inches
Lubrication Material
Grease
Shank Thread Length
Between 0.9800 inches and 1.0020 inches
Outer Ring Width
0.3750 inches
Inner Ring Width
Between 0.4950 inches and 0.5000 inches
Length From Bore Center To Shank End
Between 1.8300 inches and 1.8500 inches
Seal Quantity
2
Bearing Seal Type
Contact
Alignment Type
Self-aligning
Self-alignment Location
Internal
Thready Qty Per Inch (tpi)
24
Thread Size
0.375 inches
Self-alignment Angle
10.00 degrees
Lubrication Material Specification
Mil-g-81322 military specification single material response
Material
Steel comp e52100 inner ringsteel comp e52100 rollerplastic polytetrafluoroethylene sealsteel comp 4620 supporting sleeve or steel comp 4130 supporting sleeve or steel comp 8620 supporting sleeve or steel comp e52100 supporting sleeve
Surface Treatment
Cadmium exposed surfaces as mounted
Thread Series Designator
Unjf
NSN
3110-01-362-9812
Part Number
MS21221-4K
Description
Bearing,roller,rod End
CAGE
96906

A special single or multiple-row roller bearing, rigid or self-aligning, and constructed with either inside threaded, plain hollow, maile threaded, or solid shank.

Part MS21221-4K NSN 3110-01-362-9812

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00050
FIIG:
A044A0
Concept No.:
App. Key:
G
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:
32.0 X 14.0 X 5.5
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
51
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114820
UFC:
58860
LTL:
77.5
LCL:
--
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8482500000
  • SITC: 74650
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Other cylindrical roller bearings

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