Model: B434-8212-23

Worm Shaft

Special Features:

Part name by controlling agency: screw, power rh. First end, eighth portion, two parallel flats 2.50 across. Acme thread area 12.00 from first end has 1.88 hole drilled thur. Note: referencing drawing 596-7410365-21 will show, screw power rh, p/n b434-8212-21. For correction to drawing refer to (er) engineering report ermf02198 indicating drawing 596-7410365-21 is now, screw power lh, p/n b434-8212-23.

Properties:

Overall Length
36.125 inches
End Application
Seawolf class submarine ssn 23, external stbd tray handling winch cable drum level wind assembly
Shaft Thread Direction
Left-hand second end, second portion
Worm Thread Quantity
4
Worm Thread Lead
0.500 inches
Worm Thread Direction
Left-hand
Worm Pressure Angle In Deg
14.500
Worm Helix Angle
14.03624 deg
Worm Outside Diameter
2.000 inches
Worm Body Length
36.125 inches
Worm Body Tapered Bearing Surface End
Provided
Tapered Bearing Surface Length
0.120 inches
Shaft Location
One end of worm
Straight Unthreaded Length
0.180 inches first end, second portion
Straight Unthreaded Length
0.250 inches first end, fifth portion
Straight Unthreaded Length
0.500 inches first end, seventh portion
Straight Unthreaded Length
0.750 inches first end, ninth portion
Straight Unthreaded Length
0.880 inches first end, first portion
Straight Unthreaded Length
1.000 inches first end, eighth portion
Straight Unthreaded Length
1.060 inches first end, fourth portion
Straight Unthreaded Length
1.060 inches first end, sixth portion
Straight Unthreaded Length
2.000 inches second end, first portion
Straight Unthreaded Length
2.640 inches first end, third portion
Straight Unthreaded Section Diameter
1.623 inches second end, first portion and 1.624 inches second end, first portion
Straight Unthreaded Section Diameter
1.700 inches first end, ninth portion
Straight Unthreaded Section Diameter
1.850 inches first end, second portion
Straight Unthreaded Section Diameter
1.967 inches first end, first portion
Straight Unthreaded Section Diameter
1.967 inches first end, third portion
Straight Unthreaded Section Diameter
3.000 inches first end, fourth portion and 3.001 inches first end, fourth portion
Straight Unthreaded Section Diameter
3.000 inches first end, sixth portion and 3.001 inches first end, sixth portion
Straight Unthreaded Section Diameter
2.750 inches first end, fifth portion
Straight Unthreaded Section Diameter
4.125 inches first end, seventh portion
Straight Unthreaded Section Diameter
3.000 inches first end, eighth portion
Unthreaded Section Keyway Width
0.2490 inches first end, third portion and 0.2650 inches first end, third portion
Unthreaded Section Keyway Depth
0.500 inches first end, third portion and 0.502 inches first end, third portion
Unthreaded Section Pin Hole Diameter
0.1880 inches first end, fifth portion
Material
Nickel copper aluminum alloy
Material
Nickel alloy
NSN
3040-01-508-6623
Part Number
B434-8212-23
Description
Worm Shaft
CAGE
96169

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 B434-8212-23 NSN 3040-01-508-6623

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:
A
ESD:
A
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
38.0 X 4.0 X 4.0
Paclk Weight:
--
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:
129920
UFC:
65750
LTL:
85.0
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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