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Linear Actuating Cylinder Assembly

NSN: 2520-00-564-4243 | Model: 531491
ITAR Registered seal

A cylinder containing a piston and other component parts designed to develop linear motion required to operate a given object (s) with energy generated from either pneumatic or hydraulic pressure(s) . See also cylinder, actuating, linear. Do not use if a more specific name applies.

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Body Material
Aluminum alloy
First End Outside Diameter
0.500 inches
Mounting Provision
Threaded mounting holes
Tempurature Rating
Not rated
Overall Height
2.828 inches
Overall Width
2.531 inches
Bore Diameter
1.750 inches
Body Outside Diameter
2.125 inches
Longest Horizontal Distance Between Mounting Centers
3.188 inches
Longest Vertical Distance Between Mounting Centers
1.625 inches
Mounting Facility Thread Class
Mounting Facility Thread Direction
First End External Thread Length
1.000 inches
Compressed Length
9.688 inches
Extended Length
10.750 inches
Mounting Provision Arrangement Style
Four hole rectangular
Pressure Rating
Not rated
Mounting Facility Thread Series Designator
Mounting Facility Thread Diameter
0.312 inches
Mounting Facility Thready Qty Per Inch (tpi)
Integral Valve Operation Method
Design Characteristics
Double acting single cylinder
First Piston Rod End Style
External threaded
First Piston Rod End Thread Series Designator
First Piston Rod End Thread Diameter
0.500 inches
First Piston Rod End Thready Qty Per Inch (tpi)
First Piston Rod End Thread Class
First Piston Rod End Thread Direction
Mounting Type And Location
Flange center section
Mounting Facility Thread Length
0.594 inches
Port Location And Quantity
2 center section
Port Style
Gasket seal
Port Thread Series Designator
Port Pipe Thread Size
0.250 inches

Pricing and Availability

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NSN 2520-00-564-4243 Datasheet

Supply Class (FSC):
Vehicular Power Transmission Components
Cross Reference:
  • 531491
  • P53431A
  • 531491
  • P60873-0625
  • P55327
Cage Codes:
  • Westinghouse Air Brake Technologies (CAGE 82722)
  • Fwd Seagrave Holdings, Lp (CAGE 23382)
Schedule B & Trade:
  • Schedule B: 8483909500 (NAICS 333613)

    Parts, nesoi, of bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts

  • SITC: 74890

    Parts, n.E.S., for transmission shafts and cranks, bearing housings, gears, gearing, ball screws, gear boxes, flywheels and pulleys, clutches, etc.

  • End Use: 21180

    Industrial machines, other


P - Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of federal standard 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.


U - Precious metal content is unknown


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    119260 - Cylinders: hydraulic/pneumatic

  • WCC:

    593 - Motors and parts, (machinery and parts),(less than 35 feet)

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • LTL:

    Q - 70.0

  • ACC:

    V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $407.47 to $679.12..
Does NSN 2520-00-564-4243 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Air Force, and Turkey
What is the NIIN of NSN 2520-00-564-4243?
005644243 or 00-564-4243
Does NSN 2520-00-564-4243 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 2520-00-564-4243?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963