Model: 301978

Sleeve Bearing

Properties:

Overall Length
Between 0.6800 inches and 0.6900 inches
Body Outside Diameter
Between 3.1270 inches and 3.1290 inches
Body Inside Diameter
Between 2.7990 inches and 2.8090 inches
Left Internal Flange Hole Diameter
2.5000 inches
Left Internal Flange Width
Between 0.1520 inches and 0.1570 inches
Corner Shape
Chamfered outside left corner
Corner Shape
Square inside right corner
Corner Shape
Square inside left corner
Corner Shape
Square outside right corner
Material
Copper alloy 954
Material Specification
Qq-b-671 federal specification single material response
Style Designator
17c-1 solid, plain, no outside flanges, internal flange one end
Style Designator
Solid, plain, no outside flanges, internal flange one end
NSN
3120-00-774-4794
Part Number
301978
Description
Bearing,sleeve
CAGE
02978

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 301978 NSN 3120-00-774-4794

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114820
UFC:
58860
LTL:
77.5
LCL:
77.5
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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