Model: MS28913-5B

Airframe Roller Bearing

Special Features:

10 degrees self alignment in either direction, oil hole and oil groove in od of outer ring

Properties:

Bore Diameter
Between 0.3120 inches and 0.3125 inches
Overall Outside Diameter
Between 1.2495 inches and 1.2500 inches
Lubrication Material
Grease
Outer Ring Width
Between 0.6510 inches and 0.6560 inches
Inner Ring Width
Between 0.8070 inches and 0.8120 inches
Seal Quantity
2
Bearing Seal Type
Contact
Lubrication Material Specification
Mil-g-25537 military specification single material response
Material
Copper alloy retainer or steel retainer
Material
Rubber synthetic seal
Material
Steel inner ring
Material
Steel outer ring
Material
Steel roller
Surface Treatment
Cadmium all external/exposed metal surfaces
Style Designator
Concave rollers, double closure, self aligning
NSN
3110-00-255-4717
Part Number
MS28913-5B
Description
Bearing,roller,airframe
CAGE
96906

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 MS28913-5B NSN 3110-00-255-4717

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:
--
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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