Model: 7186995

Worm Shaft

Special Features:

Both ends chamfered 0.0625 by 45 degrees and thread surface finish 32aa

Properties:

End Similarity
Not identical
Overall Length
10.563 inches
Teeth Hardness Rating
Between 33.0 rockwell c and 35.0 rockwell c
Worm Thread Quantity
1
Worm Thread Lead
0.6253 inches
Worm Thread Direction
Right-hand
Worm Pressure Angle In Deg
14.500
Worm Helix Angle
4 degrees 34 min.
Worm Outside Diameter
2.8866 inches
Worm Pitch Diameter
2.4886 inches
Shaft Hardness Rating
Between 33.0 rockwell c and 35.0 rockwell c
Worm Thread Section Length
3.750 inches
Worm Body Length
6.376 inches
Worm Body Tapered Bearing Surface End
Not provided
Shaft Location
Both ends of worm
Straight Unthreaded Length
1.187 inches second end, second portion
Straight Unthreaded Length
1.312 inches first end, first portion
Straight Unthreaded Length
1.687 inches second end, first portion
Straight Unthreaded Section Diameter
1.3760 inches first end, first portion
Straight Unthreaded Section Diameter
1.3760 inches second end, first portion
Straight Unthreaded Section Diameter
1.3765 inches first end, first portion
Straight Unthreaded Section Diameter
1.3765 inches second end, first portion
Straight Unthreaded Section Diameter
0.998 inches second end, second portion
Straight Unthreaded Section Diameter
1.000 inches second end, second portion
Unthreaded Section Keyway Width
0.2465 inches second end, second portion
Unthreaded Section Keyway Width
0.2485 inches second end, second portion
Unthreaded Section Keyway Depth
0.136 inches second end, second portion
Unthreaded Section Keyway Depth
0.139 inches second end, second portion
Material
Steel
Material
Steel
Surface Treatment
Oxide
Surface Treatment
Black oxide
Fsc Application Data
Launcher, 762-mm rocket, truck mounted, xm289
NSN
3040-00-385-7731
Part Number
7186995
Description
Worm Shaft
CAGE
19204

A drive shaft having helical thread(s) on a portion of its outer surface, machined bearing surface(s) and facilities for driving (other than a hub) on one or both ends of shaft. Designed to mate with a cam, gear sector, worm wheel, etc. Includes items with bearings. Excludes items having more than one worm complement of helical threads, items with a separate complement of gear teeth, and gear, worm.

Part 7186995 NSN 3040-00-385-7731

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
18249
FIIG:
T246-C
Concept No.:
App. Key:
CA
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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
019940
UFC:
08170
LTL:
85.0
LCL:
85.0
WCC:
581
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8483105000
  • SITC: 74810
  • End Use: Industrial machines, other
  • NAICS: 333613
  • USDA: 1

Freight Class: Transmission shafts and cranks, except camshafts and crankshafts

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