Model: 21RRD

Flexible Shaft Coupling

Properties:

Overall Length
1.812 inches
Outside Diameter
2.125 inches
Thread Size Designator
0.250-20 both ends
Bore Diameter
0.5000 inches second end
Bore Diameter
0.6250 inches first end
Bore Length
0.5625 inches both ends
Bore Shape
Straight both ends
Furnished Items And Quantity
Setscrew 2
Design Type
Insert
Securing Method
Threaded hole both ends
Threaded Hole Quantity
1 both ends
Threaded Hole Location
Both ends: centered 0.250 in. From end of hub
Insert Material
Rubber synthetic
NSN
3010-00-889-8074
Part Number
21RRD
Description
Coupling,shaft,flexible
CAGE
76474

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 21RRD NSN 3010-00-889-8074

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
126880
UFC:
64300
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
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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