Model: SM4-4A1-502

Rod End Roller Bearing

Special Features:

Second flush lubrication fitting optional

Properties:

Thread Class
3a
Thread Direction
Right-hand
Shank Diameter
0.2500 inches
Shank Style
Externally threaded
Overall Length
Between 1.7400 inches and 1.7950 inches
Bore Diameter
Between 0.2495 inches and 0.2500 inches
Lubrication Material
Grease
Shank Thread Length
Between 0.7500 inches and 0.8100 inches
Outer Ring Width
Between 0.3350 inches and 0.3500 inches
Inner Ring Width
Between 0.3700 inches and 0.3750 inches
Length From Bore Center To Shank End
Between 1.3650 inches and 1.3950 inches
Seal Quantity
1
Shield Quantity
1
Bearing Seal Type
Contact
Alignment Type
Self-aligning
Self-alignment Location
Internal
Internal Clearance
0.0002 inches radial and 0.0010 inches radial
Features Provided
Flush lubrication fitting
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Self-alignment Angle
4.00 degrees
Lubrication Material Specification
Mil-g-81322 military specification single material response
Material
Plastic polytetrafluoroethylene seal and glass seal
Material
Steel comp 430 shield
Material
Steel comp e52100 inner ring
Material
Steel comp e52100 roller
Material
Steel comp 4620 rod end body
Material Specification
Mil-s-7420 military specification single material response inner ring
Material Specification
Mil-s-7420 military specification single material response roller
Material Specification
Mil-s-7493 military specification single material response rod end body
Material Specification
Qq-s-763 federal specification single material response shield
Surface Treatment
Cadmium rod end body
Surface Treatment Specification
Qq-p-416, type 1, cl 2 federal specification single treatment response rod end body
Style Designator
Single row, concave rollers
Thread Series Designator
Unjf
NSN
3110-01-180-6686
Part Number
SM4-4A1-502
Description
Bearing,roller,rod End
CAGE
77896

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 SM4-4A1-502 NSN 3110-01-180-6686

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:
999.9 X 999.9 X 999.9
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:
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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