Model: 428B971

Sleeve Bushing

Special Features:

Four equally spaced keys on right end surface of body, 1.750 in. Long, 0.375 in. Wide, 0.1875 in. High; raised surface on right end surface of flange, 3.125 in. Dia, 0.125 in. Wide, 0.500 in. Corner radius; nitride harden finish per b50r205, fscm 01289, navy spec. K-9495202 and k-9495296

Properties:

Overall Length
12.8750 inches
Body Inside Diameter
Between 1.1240 inches and 1.1250 inches
Flange Outside Diameter
Between 3.8750 inches and 3.8760 inches
Flange Width
0.8750 inches
End To Flange Distance
3.3750 inches
Corner Shape
Chamfered center flange outside left corner
Corner Shape
Chamfered center flange outside right corner
Corner Shape
Chamfered outside right corner
Corner Shape
Round center flange left body corner
Corner Shape
Round outside left corner
Corner Shape
Square center flange right body corner
Corner Shape
Square inside right corner
Corner Shape
Square inside left corner
Surface Finish
63.0 microinches inside diameter surface of body
Surface Finish
63.0 microinches outside diameter surface of flange
Surface Finish
63.0 microinches right end surface of flange
Left End Body Diameter
2.1250 inches
Right End Body Diameter
1.8750 inches
Material
Steel
Material Specification
B50r217, fscm 01289 mfr ref single material response
Style Designator
21c solid, external flange
NSN
3120-01-180-4836
Part Number
428B971
Description
Bushing,sleeve
CAGE
01289

A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes bushing, drill, jig.

Part 428B971 NSN 3120-01-180-4836

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
13206
FIIG:
A045A0
Concept No.:
App. Key:
K
Cond. Code:
2
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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
14.0 X 3.0 X 4.0
Paclk Weight:
8.6000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
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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Phone: +1 470-231-0824
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Schedule B and Export
  • Schedule B: 8482997060
  • SITC: 74699
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Parts, nesoi, for cylindrical roller bearings, nesoi

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