Model: B57-4

Sleeve Bearing

Properties:

Overall Length
Between 0.4950 inches and 0.5050 inches
Body Outside Diameter
Between 0.4380 inches and 0.4390 inches
Body Inside Diameter
Between 0.3130 inches and 0.3140 inches
Lubrication Material
Lubricating oil, synthetic, mil-l-11734 and lubricating oil, mil-l-6085 and lubricating oil, mil-l-15016, symbol 2190
Corner Shape
Square all corners
Material
Copper alloy
Material Specification
Mil-b-5697, type 1, compa military specification single material response
Style Designator
17c solid, plain, no outside flanges
Nondefinitive Specification/std Data
1 type and composition
NSN
3120-00-906-6153
Part Number
B57-4
Description
Bearing,sleeve
CAGE
71041

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. it must have a visible or detectable means of lubrication or be self-lubricated. the over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. see also bushing, sleeve; spacer, sleeve; and washer (as modified). excludes pin, hollow.

Part B57-4 NSN 3120-00-906-6153

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
13205
FIIG:
A045A0
Concept No.:
App. Key:
D
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:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8482997090
  • SITC: 74699
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Parts, nesoi, for roller bearings or for combined ball/roller bearings, nesoi

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