540905-55

54090555 Fluid Flow Restrictor Unit

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Datasheet. 540905-55 specification

Body Material
The basic material of which the body is fabricated.

cres, ams 5639 per united aircraft spec no hs 178

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

2b

Thread Direction
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.

RIGHT-Hand

Overall Length
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

1.340in. ⁓1-11/32"

Thread Size Designator
Designates the thread diameter and number of threads per specific measurement scale.

10-32

Operating Temp Range
The minimum and maximum limits of temperature at which the item is rated for operation.

not rated

Design Type
Indicates the design type of the item.

straight

Screening Material
The element,compound,or mixture of which the screening is fabricated,excluding any surface treatment.

nickel copper alloy per ams 4730

End Connection Type
Indicates the type of end connection.

threaded female

End Connection Similarity
An indication of whether or not the end connections are identical.

not identical

Pressure Rating
The pressure at which an item is designed to operate.

not rated

Thread Series
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.

unf

Strainer Type And Quantity
Indicates the type and number of strainers provided.

1 screen

Err Default
The amount of flow per unit of measure,and type of fluid for which the item is designed.

err default

Answers.

What is the thread direction?

Right-hand

What is the thread class?

2b

What is the NSN for 540905-55?

4730-00-654-2400

What's the federal classification of 540905-55?

FSC 4730 ⁓ Hose, pipe, tube, lubrication, and railing fittings

Excluding air conditioning-heating fittings (fsc 4520); bituminized fiber and concrete fittings (fsc 5630); conduit boxes and fittings (fsc 5975); downspout fittings (fsc 5670); medical and surgical fittings (fsc 6515); laboratory fittings (fsc 6640); post caps and rail ends (fsc 5660); machine thread bushings and plugs (fsc 5365).

NSN 4730-00-654-2400 RESTRICTOR UNIT,FLUID FLOW

1.340" overall length right-hand 2b thread class

NIIN
006542400
NIIN Date
01/01/63
Schedule B
 
Name Code
20933
FIIG
T359-C
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Major End Users Countries and entities

  • - Italy 

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Similar by Design Other restrictor units with similar characteristics

Nothing similar to this part number was found in our inventory

540905-55 / Restrictor unit,fluid flowWhat is the formal definition of this item?

An assembly consisting of an orifice in a fixed plate, disk, or tube with screens or filters on one or both sides, depending on the direction of filtered flow. see restrictor, fluid flow.