Model: 8642409

Worm Shaft

Special Features:

Surface finish mil-std-171, system 21.6 /color black/ no.2710 of fed-std-595 for second end shaft face

Properties:

End Similarity
Not identical
Thread Length
0.250 inches second end, third portion
Overall Length
Between 3.260 inches and 3.270 inches
Screw Thread Series Designator
Unf second end, third portion
Shaft Thread Direction
Right-hand second end, third portion
Teeth Hardness Rating
Between 30.0 rockwell c and 35.0 rockwell c
Worm Thread Quantity
1
Worm Thread Lead
0.100 inches
Worm Thread Direction
Right-hand
Worm Pressure Angle In Deg
14.500
Worm Helix Angle
3 degrees 39 min
Worm Outside Diameter
Between 0.558 inches and 0.563 inches
Worm Pitch Diameter
Between 0.499 inches and 0.500 inches
Shaft Hardness Rating
Between 30.0 rockwell c and 35.0 rockwell c
Worm Thread Section Length
Between 0.560 inches and 0.570 inches
Worm Body Length
1.314 inches
Worm Body Tapered Bearing Surface End
Not provided
Shaft Location
Both ends of worm
Straight Unthreaded Length
0.094 inches first end, first portion
Straight Unthreaded Length
0.234 inches second end, second portion
Straight Unthreaded Length
0.394 inches first end, second portion
Straight Unthreaded Length
0.650 inches second end, first portion
Straight Unthreaded Length
1.078 inches second end, fourth portion
Straight Unthreaded Section Diameter
0.250 inches first end, second portion
Straight Unthreaded Section Diameter
0.250 inches second end, fourth portion
Straight Unthreaded Section Diameter
0.310 inches first end, first portion
Straight Unthreaded Section Diameter
0.315 inches second end, second portion
Straight Unthreaded Section Diameter
0.320 inches first end, first portion
Straight Unthreaded Section Diameter
0.410 inches second end, first portion
Straight Unthreaded Section Diameter
0.400 inches second end, first portion
Unthreaded Section Pin Hole Diameter
0.1090 inches second end, fourth portion
Material
Steel
Material
Steel
Surface Treatment
Passivate
Surface Treatment
Passivated
Fsc Application Data
Quadrant, fire control
NSN
3040-00-715-9285
Part Number
8642409
Description
Worm Shaft
CAGE
19200

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 8642409 NSN 3040-00-715-9285

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:
0.1000lbs
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:
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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