KP21BS

Airframe Ball Bearing

NSN 3110-00-508-3051

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

1 EA

NIIN:

005083051

Product Features

80 pct full of specified grease, 0.0003 in. To 0.0010 in. Radial clearance, 6.5 degrees self alignment in either direction

Technical Specifications of NSN

Bore Diameter:

1.3130 inches

Overall Outside Diameter:

2.2500 inches

Lubrication Material:

Grease

Outer Ring Width:

0.3750 inches

Inner Ring Width:

0.4370 inches

Seal Quantity:

Bearing Seal Type:

Contact

Alignment Type:

Self-aligning

Load Direction:

Radial

Self-alignment Location:

External

Features Provided:

Aligning ring

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 or plastic seal

Material:

Steel comp e52100 ball or steel comp e51100 ball

Material:

Steel comp e52100 inner ring

Material:

Steel comp e52100 outer ring

Material Specification:

Ams 3652 assn standard 1st material response seal or ams 3666 assn standard 2nd material response seal

Surface Treatment:

Cadmium exposed surfaces as mounted

Style Designator:

Single row, external self aligning, w/aligning ring

NSN:

3110-00-508-3051

Item Name:

Double Row Torque Tube Ball

Cage Code:

21335

Other Related Parts

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

AS27648

Cage Code:

81343

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

KP21BSFS464

Cage Code:

06144

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MS27648-21

Cage Code:

81343

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

KP21BS

Cage Code:

38443

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MS27648-21

Cage Code:

96906

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

KP21BSFS464

Cage Code:

21335

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:

0.3000lbs

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): "Double Row Torque Tube Ball"

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.