Model: 39-21057-1

Self-aligning Plain Bearing

Properties:

Bore Diameter

Between 2.2492 inches and 2.2497 inches

Lubrication Material

Lubricating oil

Outer Member Outside Diameter

Between 3.5617 inches and 3.5625 inches

Outer Member Width

Between 1.6870 inches and 1.6970 inches

Inner Member Width

Between 1.9640 inches and 1.9690 inches

Lubrication Feature

Groove internal surfaces

Material

Steel comp e52100 inner member

Material

Steel comp e4340 outer race member

Material Specification

Fed standard 66 federal standard single material response inner member and aisi/sae e52100 assn standard single material response inner member

Material Specification

Mil-s-5000 military specification single material response outer race member

Precious Material

Silver

Surface Treatment

Chromium inner member

Surface Treatment

Silver outer race member

Style Designator

Without insert or liner

NSN

3120-00-777-2305

Part Number

39-21057-1

Description

Bearing,plain,self-aligning

CAGE

02758

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 39-21057-1 NSN 3120-00-777-2305

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

2.9000lbs

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:

114850

UFC:

58880

LTL:

70.0

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