Model: DD421S53-021PC444

Worm Gear

Properties:

Pitch Diameter
1.2500 inches
Face Type
Straight
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
1.450 inches
Thread Form Quantity
4
Thread Form Direction
Right-hand
Pressure Angle
14.5000 degrees
Helix Angle
17.7500 degrees
Face Width
1.375 inches
Bore Diameter
0.750 inches both ends
Keyway Width
0.188 inches both ends
Distance From Bore Center To Keyway Bottom
0.469 inches both ends
Material
Steel
Material Specification
Mil-s-890, class b military specification single material response
Style Designator
Hubless
NSN
3020-00-446-4659
Part Number
DD421S53-021PC444
Description
Gear,worm
CAGE
53711

A gear with teeth on its outer surface in the form of helical threads.

Part DD421S53-021PC444 NSN 3020-00-446-4659

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05467
FIIG:
A27300
Concept No.:
1
App. Key:
AJ
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:
0.3000lbs
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:
197339
UFC:
96710
LTL:
65.0
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8483409000
  • SITC: 74840
  • End Use: Industrial machines, other
  • NAICS: 333612
  • USDA: 1

Freight Class: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately

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