Guest Forum User asked 17 years ago

Which mechanical parts are listed in NPRD 95? Are there informations of MTBF?
Thanks!

6 Answers
Guest Forum User answered 17 years ago

David, NPRD95 contains approximately 13K of mechanical component failure rates such as fans, bearings etc. In this databook you’ll find information on generic failure rates (sometimes in miles) for such mechanical devices with their quality, relevant environment and datasource. Copies are available from both the RAC and our store either case the book sells for $215.00US here’s a link: http://store.mil-standards.com/product.asp?0=297&1=298&3=732

highkeas answered 12 years ago

Whare can I find definitions of the various App. Env. codes that are used in NRPD (such as A, G, GB, SF, DOR)?
Thanks.

smorris answered 12 years ago

Download a copy of MIL-HDBK-217. The definitions are published in the front of this handbook. Here is a link where you can download it:
http://assist.daps.dla.mil/quicksearch/basic_profile.cfm?ident_number=53939

highkeas answered 12 years ago

Thanks for your response.
I had already looked at 217F but some NPRD application environments were not listed. I kept searching and found a listing in Table 1-5 of this document:
http://theriac.org/productsandservices/products/downloads/content/EPRD%20Sample.pdf
I hope this might be of interest to other users of NPRD.

smorris answered 12 years ago

Which mechanical parts are listed in NPRD 95? Are there informations of MTBF?
Thanks!

Here is a summary of the types of parts covered:

Accelerometer
Accelerometer, Pendulum
Accumulator
Accumulator, Hydraulic
Actuator
Actuator , Pneumatic, Linear
Actuator, Electrical
Actuator, Mechanical
Actuator, Piston Actuator, Pneumatic
Actuator, Sustainer Servo Actuator, Utility
Adapter
Adapter, Straight
Adapter,Brake
Air Conditioner
Air Handling Unit, Humidity
Alarm
Amplifier
Antenna
Antenna, Drive Antenna, Microwave
Arm
Arm, Adjustable
Arm, Center
Arm, Steering
Arrester
Arrester, Surge
Attenuator
Axle
Axle Axle, Assembly, Automotive
Baffles
Band
Battery
Battery, Non-Rechargeable
Battery, Rechargeable
Bearing
Bearing, Ball
Bearing, Roller
Bearing, Sleeve
Bellow
Belt
Blower
Board
Bobbin
Body
Body,Valve
Boiler
Boiler, Steam
Bolt
Bow
Bow, Vehicle
Box
Brace
Brace,Assembly
Bracket
Bracket, Angle
Bracket, Assembly
Bracket, Body
Bracket, Mounting
Brake
Brake, Air
Brush
Brush, Electrical
Bumper
Bus Connection
Bushing
Bushing, Cable
Bushing, Connector
Bushing, Connector, Adapter
Bushing, Knob
Cable Accessory
Cable Assembly
Cable Assembly,Coaxial
Cable, Below Ground
Cable, Coaxial
Cable, Electrical
Cable, Wire
Computer Peripheral, Disk Drive
Computer Peripheral, Memory Disk
Condenser
Connection
Connection, Wirewrap
Connector
Connector Accessory
Connector Accessory, Adapter
Connector Accessory, Cover
Connector Accessory, Guard
Connector Accessory, Hood
Connector Accessory, Insert
Connector Accessory, Insulator
Connector Accessory, Latch
Connector Accessory, Latch Block
Connector Accessory, Lock
Connector Accessory, Mounting
Connector Accessory, Screw Kit
Connector Accessory, Screw Lock Kit
Connector Accessory, Sheli
Connector Accessory, Shield
Connector Accessory, Sleeve
Connector Accessory, Strain Relief
Connector Accessory,Key
Connector Pin
Connector, Circular
Connector, Coaxial
Connector, Jack
Connector, Micro
Connector, PC
Connector, Phone
Connector, Plug
Connector, Receptacle
Connector, RF
Connector, Shunt
Connector, Socket
Connector, Splice
Connector, Strip
Connector, Wire
Contact
Contact, Connector
Contact, Connector,RF
Control Assembly
Control panel
Converter
Cooler
Cooler, Lubricating Oil
Cooling Tower
Cord
Cord Assembly
Counter
Counter/Timer
Counter/Timer, Analog Counter/Timer, Dial
Counterweights
Coupler
Coupling
Coupling, Half
Coupling, Shaft
Cover
Cover Assembly
Cover, Gear
Crank
Crank, Shaft
Crystal
Cylinder
Cylinder, Head
Damper Assembly
Deflector
Delay Line
Detector
Diaphragm
Differential
Disk
Display
Display, Driver
Display, LED
Display, LED, Alpha-Numeric
Display, Liquid Crystal
Door
Drive
Drive, Constant Speed
Drum
Dual Lev
Duct
Elbow
Electrical Filter
Electrical Filter,Microwave
Electrical Motor
Electrical Motor, Hydraulic
Electrical Motor, Motor/Blower
Electrical Motor, Stepping
Electron Tube, Magnetron
Electron Tube, Pentrode
Electron Tube, Power
Electron Tube, Receiving
Electron Tube, Tetrode
Electron Tube, Thyratron
Electron Tube, Thyratron Electron Tube, Thyratron, Subminiature
Electron Tube, Triode
Electron Tube, Triode, Subminiature Electron Tube,Voltage Regulator
Electronic Assembly
Engine
Engine, Diesel
Engine, Turbine
Fastener
Fastener, Slip Ring
Filler
Fitting
Fitting, Hydraulic
Fitting, Quick Disconnect
Flange
Flywheel
Frame
Frame, Seat Frame, Structural
Fuel Line
Fuse
Fuse Holder
Gasket
Gasket, Metal
Gasket, Packing
Gasket, Rubber
Gate
Gauge
Gauge, Fuel
Gauge, Pressure
Gauge, Rate of Flow
Gear
Gear Box
Gear, Drive
Gear, Spur
Gear, Train
Gearshaft
Generator
Generator, Diesel
Generator, Diesel, Unpackaged
Generator, Gas
Generator, Pulse
Generator, Turbine .
GF Display, LED, Numeric
Guide
Gymbal
Gyros
Gyros, Integrating
Gyroscope
Handle
Harness, Wiring
Header
Heater
Heater, Combustion Heater, Electrical
Heater, Gas
Hinge
Hinge, Leaf
Hoist
Hoist, Unit
Hook
Horn
Hose
Hose Assembly
Hose, Flexible
Hose, Hydraulic
Housing
Housing, Air Brake
Housing, Cast
Housing, Rocker
Igniter
Igniter, Explosive
Indicator
Inductive Device
Inductive Device, Coil
Inductive Device, Inductor
Injector
Inlet, Exhaust Valve Inner Tube, Pneumatic Tire
Insert
Insulation
Insulator
Intercomm
Inverter
Ionization Tube Isolator, Microwave
Joint
Joint, Solder
Joystick
Keyboard
Kit
Knob
Knob, Pushbutton
Knob, Skirt
Lamp
Lamp, Landing Lamp, Neon
Latch
Lens
Lever
Lever Assembly
Light
Light,Dome
Magnet
Magnet, Core
Magnet, Permanent
Magnetron
Manifold
Manifold, Intake
Mechanical Filter
Mechanical Filter, Air
Mechanical Filter, Assembly
Mechanical Filter, Element
Mechanical Filter, Gas
Mechanical Filter, Hydraulic
Mechanical Filter, Liquid
Mechanical Filter, Pneumatic
Mechanical Filter, Screen
Meter
Meter, Ammeter
Meter, Electrical
Meter, Power
Meter, Time
Meter, Voltmeter
Mil Cable Assembly, RF
Modulator
Module
Monitor
Motor
Motor Generator Set
Mount
Muffler
Multiplier
Network
Network, IF Network, Pulse
Nozzle
Nut
Nut, Audio
Nut, Connector
Nut, Connector, RF
Nut, Plain
Nut, Push-On Nut, Self-Locking
Optical, Encoder
Orifice
Oscillator
Packing Preformed
Pad
Panel
Pedal
Pin, Mechanical
Pin, Mechanical, Dowel
Pipe
Piping
Piston
Plate
Plate, Identification
Plate, Instruction
Plug
Plug, Pipe
Plunger
Power Source
Power Supply
Power Supply, Uninterruptable
Power Transmitter
Printed Wiring Assembly
Printer
Printer, Dot Matrix
Printer, High Speed
Probe
Propeller
Propeller, Centerbody Hinge Propeller, Shaft
Pulley
Pump, Pneumatic
Pump, Vacuum
Pump, Water
Radar
Rail Assembly
Reactor
Receiver
Receptacle
Recorder
Rectifier
Reducer
Reflector
Regulator, Electrical Regulator, Electrical, Voltage
Regulator, Pneumatic
Regulator, Voltage
Regulator,Oxygen Demand
Relay
Relay, Contact
Relay, Electromechanical
Relay, Electromechanical, Armature
Relay, Electromechanical, Mercury Wetted Relay, Electromechanical, Non-Latch Relay, Electromechanical, Reed
Relay, Time Delay
Relay,Solenoid
Resevoir
Restrictor
Retainer
Retainer, Helical
Ring
Ring, Piston
Ring, Retaining
Rivet
Rod
Rod, Push
Roller
Rope Assembly
Rotary Switch
Screw
Screw, Cap
Seal
Seal, Boot
Seal, Cap
Seal, Lip
Seal, Magnetic Seal, Non-Metallic
Seal, Packing
Seal, Plain
Seal, Weather
Seat
Seat Seat Assembly
Sensor
Sensor, Light
Sensor, Pressure
Sensor, Temperature
Sensor, Thermocouple
Sensor, Torque Sensor, Transmitter
Separator
Servo
Shackle
Shaft
Shield
Shock Absorber
Shroud
Sleeve
Socket
Socket Electronic
Socket Mechanical
Socket, IC
Socket, Pin
Socket, Strip
Socket, Tube
Solder Connection
Solenoid
Spacer
Spider
Spindle, Wheel
Spring
Spring, Connector
Spring, Helical
Sprocket
Starter
Starter, Engine
Starter/Generator
Step
Strainer
Strap
Strap, Retaining
Stud
Stud, Fastener
Support
Suppressor
Switch
Switch, Coaxial
Switch, Contact
Switch, Float
Switch, Flow
Switch, Frame Switch, Humidity
Switch, Overcurrent Alarm Switch, Pressure
Switch, Radio Frequency
Switch, Rocker
Switch, Rotary
Switch, Thermostatic
Switch, Toggle
Switchgear
Switchgear, Bus
Synchro
Synchro, Resolver
Tank
Tank, Fuel
Tank, Pressure
Tank, Radiator
Tank, Storage
Tee
Telescope
Terminal Connection
Terminal Connection, Barrier Block
Terminal Connection, Lug
Terminal Connection, Stud
Terminal Connection, Tab
Thermal Switch
Thermostat
Tie Rod
Timer
Transducer
Transducer, AirFlow
Transducer, Position Transducer, Pressure
Transducer, Temperature
Transmission
Tube
Tube, Metallic
Tube, Vent
Valve
Valve Assembly
Valve, Air
Valve, Butterfly
Valve, Check
Valve, Doublecheck Valve, Drain
Valve, Fuel
Valve, Gate
Valve, Globe
Valve, Hydraulic
Valve, Hydraulic, Manual Activated
Valve, Hydraulic, Servo
Valve, Hydraulic, Shuttle Valve, Hydraulic, Solenoid
Valve, Hydraulic, Solenoid
Valve, Intake
Valve, Operator
Valve, Plug
Valve, Pneumatic
Valve, Pneumatic, Activated Com Mil Valve, Pneumatic, Ball Valve, Pneumatic, Bellows Diaphragm
Valve, Poppet
Valve, Seat
Valve, Servo Valve, Shut-Off
Valve, Slide Action Valve, Solenoid
Valve, Vent and Relief Valve, Water
Valve,Air Control Valve,Ball
Valve,Regulator Valve.Relief
Ventilator
Ventilator, Cowl
Washer
Washer Assembly
Washer, Connector
Washer, Spring
Waveguide
Wheel
Window, Vehicle
Yoke