Model: MS28913-8C

Airframe Roller Bearing

Special Features:

0.0002 to 0.0010 in. Radial clearance, oil hole and oil groove in od of outer ring, 10 degrees self alignment in either direction

Properties:

Bore Diameter
Between 0.4995 inches and 0.5000 inches
Overall Outside Diameter
Between 1.6870 inches and 1.6875 inches
Lubrication Material
Grease
Outer Ring Width
Between 0.8070 inches and 0.8120 inches
Inner Ring Width
Between 0.9995 inches and 1.0000 inches
Retainer Fabrication Method
Machined
Seal Quantity
2
Bearing Seal Type
Contact
Lubrication Material Specification
Mil-g-81322 military specification single material response
Material
Rubber synthetic seal
Material
Steel comp 4140 retainer or copper alloy 820 retainer or copper alloy 875 retainer or copper alloy 827 retainer or copper alloy 828 retainer
Material
Steel comp e52100 inner ring
Material
Steel comp e52100 outer ring
Material
Steel comp e52100 roller
Material Specification
Mil-s-7420 military specification single material response outer ring
Material Specification
Mil-s-7420 military specification single material response inner ring
Material Specification
Mil-s-7420 military specification single material response roller
Surface Treatment
Cadmium exposed surfaces as mounted
Surface Treatment Specification
Qq-p-416, type 1 cl 2 federal specification single treatment response exposed surfaces as mounted
Style Designator
Concave rollers, double closure, self aligning
NSN
3110-00-182-8577
Part Number
MS28913-8C
Description
Bearing,roller,airframe
CAGE
81343

A cylindrical item in which the inner or outer ring turns upon row(s) of hardened roller, bearing which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes bearing, roller, cylindrical.

Part MS28913-8C NSN 3110-00-182-8577

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00046
FIIG:
A044A0
Concept No.:
App. Key:
U
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:
0.4000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
ZZ
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: 8482800080
  • SITC: 74680
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Other ball or roller bearings, including combined ball/roller bearings, nesoi

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