Model: 16421

Worm Shaft

Properties:

End Similarity
Not identical
Overall Length
12.125 inches
Worm Thread Quantity
1
Worm Thread Lead
0.523 inches
Worm Thread Direction
Right-hand
Worm Pressure Angle In Deg
14.500
Worm Helix Angle
4 degrees 46 min
Worm Outside Diameter
2.344 inches
Worm Pitch Diameter
2.188 inches
Worm Body Length
3.250 inches
Worm Body Tapered Bearing Surface End
Not provided
Shaft Location
Both ends of worm
Straight Unthreaded Length
0.750 inches second end, second portion
Straight Unthreaded Length
0.750 inches first end, second portion
Straight Unthreaded Length
1.125 inches second end, first portion
Straight Unthreaded Length
1.125 inches first end, first portion
Straight Unthreaded Length
2.500 inches first end, third portion
Straight Unthreaded Length
2.500 inches second end, third portion
Straight Unthreaded Section Diameter
1.500 inches first end, first portion
Straight Unthreaded Section Diameter
1.500 inches second end, first portion
Straight Unthreaded Section Diameter
1.000 inches second end, third portion
Straight Unthreaded Section Diameter
1.000 inches first end, third portion
Straight Unthreaded Section Diameter
1.188 inches first end, second portion
Straight Unthreaded Section Diameter
1.188 inches second end, second portion
Unthreaded Section Keyway Width
0.2500 inches first end, third portion
Unthreaded Section Keyway Depth
0.125 inches first end, third portion
Unthreaded Section Pin Hole Diameter
0.2500 inches first end, first portion
Unthreaded Section Pin Hole Diameter
0.2520 inches first end, first portion
Material
Steel
Material
Steel
NSN
3040-00-629-9421
Part Number
16421
Description
Worm Shaft
CAGE
03476

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 16421 NSN 3040-00-629-9421

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
556.0000lbs
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:
126900
UFC:
65750
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
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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