Model: 241970

Emergency Ram Air Power Unit

Properties:

End Application
Aircraft model a-4
General Description
Ram air turbine is mounted on the nose section of the store; it is a propeller type ram air driven power source for the hydraulic pump; the turbine has a mechanical feature which governs its speed from 3600 to 5000 rpm; turbine has four symmetrically arranged blade assemblys powering a common shaft; an external spline mates with the hydraulic pump; six threaded turbine studs provide mounting through the nose section casting and hydraulic pump
NSN
1650-01-357-1182
Part Number
241970
Description
Power Unit,ram Air,emergency
CAGE
86845

A device which includes a turbine, governor, speedsensing device, and a gear box. Its power source is ram air. It is designed to produce a predetermined output shaft speed to operate a hydraulic pump and/or an electric generator drive, which furnishes emergency power to aircraft in case of hydraulic and/or electrical system failure. The unit may include the pump and/or the generator. For items which provide power during normal aircraft operation, see drive, constant speed (as modified).

Part 241970 NSN 1650-01-357-1182

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
61769
FIIG:
A23900
Concept No.:
App. Key:
A
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:
F

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
25.0 X 24.0 X 10.0
Paclk Weight:
50.0000lbs
Item Weight:
--
Item Dim:
025002500080
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
03
LVL_A:
Q
LVL_B:
F

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
85.0
WCC:
671
TCC:
Z
SHC:
9
ACC:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 8803300060
  • SITC: 79295
  • End Use: Parts for military-type goods
  • NAICS: 336413
  • USDA: 1

Freight Class: Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)

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