Model: 425-212C

Flexible Shaft Coupling

Properties:

Overall Length
3.880 inches
Outside Diameter
4.750 inches
Keyway Width
0.250 inches second end
Keyway Width
0.312 inches first end
Keyway Depth
0.1250 inches second end
Keyway Depth
0.1560 inches first end
Thread Size Designator
3/8-16 second end
Thread Size Designator
7/16-14 first end
Bore Diameter
0.9970 inches second end
Bore Diameter
1.3750 inches first end
Bore Length
1.8800 inches both ends
End Application
Weapons system nucclear power plants
Bore Shape
Straight both ends
Design Type
Grid spring
Keying Facility Quantity
1 both ends
Keying Facility Type
Keyway both ends
Securing Method
Threaded hole both ends
Threaded Hole Quantity
1 both ends
Threaded Hole Location
Both ends: over keyway
Features Provided
Keyway and exposed coupling bolt type and tapered grid spring
NSN
3010-01-429-5396
Part Number
425-212C
Description
Coupling,shaft,flexible
CAGE
21444

A device for connecting the ends of two shafts so that rotary motion of one shaft is transmitted to the other shaft. It is constructed to allow for slight misalignment of shafts both linear and angular.

Part 425-212C NSN 3010-01-429-5396

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04459
FIIG:
A522B0
Concept No.:
App. Key:
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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
2.0000lbs
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:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
190500
UFC:
93590
LTL:
RATING VARIABLE
LCL:
--
WCC:
586
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8483608000
  • SITC: 74860
  • End Use: Industrial machines, other
  • NAICS: 333613
  • USDA: 1

Freight Class: Shaft couplings, except universal joints

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