K21B

Airframe Ball Bearing

NSN 3110-00-042-0444

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

1 EA

NIIN:

000420444

Product Features

W80 pct.Full of mil-g-81322, heat treat rings and balls to rockwell c 60 to 66 and stabilized for operation at 250 deg. F, radial and lateral eccentricity, inner ring 0.0010 in. Outer ring 0.0016 in., 0.0003-0.0010 in. Radial clearance

Detail Specifications

Bore Diameter:

1.3130 inches

Overall Outside Diameter:

2.0625 inches

Lubrication Material:

Grease

Outer Ring Width:

0.3750 inches

Inner Ring Width:

0.4370 inches

Seal Quantity:

Bearing Seal Type:

Contact

Load Direction:

Radial

Standard Tolerance Designation:

Afbma standard tolerance for airframe ball bearings

Lubrication Material Specification:

Mil-g-81322 military specification single material response

Material:

Plastic polytetrafluoroethylene seal

Material:

Steel comp e51100 ball or steel comp e52100 ball

Material:

Steel comp e52100 inner ring

Material:

Steel comp e52100 outer ring

Material:

Stainless steel retainer

Material:

Steel comp e51100 or steel comp e52100 ball

Material Specification:

66 federal standard all material responses ball

Material Specification:

66 federal standard single material response inner ring

Material Specification:

66 federal standard single material response outer ring

Material Specification:

Ams 3652 assn standard single material response seal or ams 3666 assn standard single material response seal

Material Specification:

Ams 3652 assn standard single material response or ams 3666 assn standard single material response seal

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:

Single row inner ring extended both sides

NSN:

3110-00-042-0444

Item Name:

Bearing,landing Gear Struts

Cage Code:

38443

Manufacturer Part Numbers

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

AS27642

Cage Code:

81343

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MS27642

Cage Code:

81343

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

KP21BFS50160

Cage Code:

06144

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

KP21BFS464

Cage Code:

06144

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

KP21B

Cage Code:

38443

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MS27642-21

Cage Code:

81343

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

AN202KP21BANG25

Cage Code:

80059

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

KP21BANG25

Cage Code:

21335

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

KP21BFS10160

Cage Code:

21335

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

KP21BFS50160

Cage Code:

21335

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

KP21BFS464

Cage Code:

21335

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MA27642-21

Cage Code:

06144

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MS27642-21

Cage Code:

06144

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MS27642KP21B

Cage Code:

91936

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MS27642-21

Cage Code:

96906

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

AN202KP21B

Cage Code:

88044

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MS20202KP21B

Cage Code:

96906

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

6026-7055

Cage Code:

36378

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

6026-7055-4

Cage Code:

36378

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MS27642KP21B

Cage Code:

38443

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MS27642-21

Cage Code:

5V122

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

10346576

Cage Code:

A486G

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

00041

FIIG:

A044A0

Concept No.:

App. Key:

Cond. Code:

Status:

Part Materials

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.2000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

114820

UFC:

58860

LTL:

77.5

LCL:

WCC:

742

TCC:

SHC:

ACC:

Trailers/Vehicles

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Pricing & Availability

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Definition Definition of approved item name (AIN): "Landing Gear Struts Bearing"

A cylindrical item in which the inner or outer ring turns upon row(s) of hardened ball, 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, ball, annular.