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

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:
B
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:
S
ESD:
ESD:
MMAC:
CRITL:
X

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:
M
SPI No.:
SPI Rev.:
SPC Mkg:
51
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114850
UFC:
58880
LTL:
70.0
LCL:
--
WCC:
742
TCC:
Z
SHC:
9
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

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