Model: SPECIAL P17-4-120

Spur Antibacklash Gear

Special Features:

Weapon system essential

Properties:

End Application
Wasp class lhd; spruance class dd (963); cimmaron class ao; ticonderoga class cg (47); whidbey island class lsd; nimitz class cvn; forrestal class cv; supply class aoe; kidd class ddg
Pitch Diameter
3.7500 inches
Teeth Quantity
120
Bore Style
Plain both ends
Criticality Code Justification
Feat
Outside Diameter
3.811 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.302 inches first end
Face Width
0.125 inches
Bore Diameter
0.787 inches both ends
Hub Style Designator
Pinned first end
Hub Diameter
1.125 inches first end
Precision Classification
Quality number 10 or quality number 11
Material
Copper alloy
Material Specification
Qq0b0626 federal specification single material response
Style Designator
Protruding hub
Furnished Items And Quantity
1 setscrew
NSN
3020-01-032-0323
Part Number
SPECIAL P17-4-120
Description
Gear,antibacklash,spur
CAGE
00141

An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.

Part SPECIAL P17-4-120 NSN 3020-01-032-0323

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
26668
FIIG:
A27300
Concept No.:
App. Key:
AC
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:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.6000lbs
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:
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:
Trailers/Vehicles

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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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