Model: MS21154S4

Self-aligning Plain Bearing

Properties:

Bore Diameter

Between 0.2495 inches and 0.2500 inches

Lubrication Material

Grease, mil-g-21164

Outer Member Outside Diameter

Between 0.6557 inches and 0.6562 inches

Outer Member Width

Between 0.2450 inches and 0.2550 inches

Inner Member Width

Between 0.3410 inches and 0.3430 inches

Static Radial Load Rating

7080 pounds

Hardness Rating

27.0 rockwell c outer race member and 36.0 rockwell c outer race member

Hardness Rating

56.0 rockwell c inner member

Material

Steel comp 440c inner member

Material

Steel comp e4340 outer race member or steel comp 4130 outer race member or steel comp 8630 outer race member

Material Specification

Ams 5630 assn standard single material response inner member

Surface Treatment

Chromium inner member

Surface Treatment

Cadmium outer race member and chromate outer race member

Surface Treatment Specification

Qq-c-320, class 2 federal specification single treatment response inner member

Surface Treatment Specification

Qq-p-416, type 1, class 2 federal specification single treatment response outer race member

Style Designator

Without insert or liner with staking groove

NSN

3120-01-411-8447

Part Number

MS21154S4

Description

Bearing,plain,self-aligning

CAGE

96906

A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes bearing, plain, rod end and bearing, plain, spherical.

Part MS21154S4 NSN 3120-01-411-8447

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

13208

FIIG:

A045A0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

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

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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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Schedule B and Export

Schedule B: 8482300040
SITC: 74630
End Use: Industrial machines, other
NAICS: 332991
USDA: 1

Freight Class: Spherical roller bearings, single row