Linear Electro-mechanical Actuator

NSN: 4810-01-550-0770 | Model: A 8251-771

A self-contained power transmitting device designed to convert electrical energy into controlled mechanical force, in the form of linear (straight line) mechanical movement. Comprised of an electrical moto (s), gear box(es), screwjacks, limit switch(es) , and such accessories as required for the specific moving and positioning of other components. Excludes hydraulic and pneumatic cylinders and screwjacks.

NSN Properties and Flags

NATO Stock Number

4810-01-550-0770

DEMIL

Terminal Type

Connector

Unpackaged Unit Weight

16.0 kilograms

Part Name Assigned By Controlling Agency

Ug-actuator

Special Features

A proportional electro-hydraulic actuator; provides a 20 to 160 ma position signal; designed for use with woodward 2301, 400, 43027, 500-series and 70-series controls; rotary output actuator has 42 degrees of terminal, output, shaft travel; recommended travel from the no-load to the full-load position is 2/3 of full actuator travel; used on diesel, gas and gasoline engines, also steam and industrial gas turbines; max work capacity of 19.4 j in theincrease direction and 23.3 j in the decrease direction; the ug-acturator output is directly proportional to a 20 to 160 ma signal from an electronic control system; 0.500-36 serrated terminal shaft

Supplementary Features

Cast-iron case; equipped with a gerotor pump, 3161 governor type; the pump uses oil from the self-contained ug-actuator sump to provide 1172 kpa, 170 psi, internal operating pressure; the pump operates in one direction only; the drive uses a max of 375 w, 0.5 hp; mounting hole dimensions of 82.7-83.2 mm; connect the return line to the 0.250-28 nptf port in the top cover; designed to give stable operation with most oils, if the fluid viscosity at the operating temperature is within a 50 to 3000 sus, saybolt universal seconds, range; electrical connection 3-pin, ms-3102e-14s-7p, plug connector

Pricing and Availability

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Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 4810-01-550-0770 Datasheet

Supply Class (FSC):

Powered Valves

Cross Reference:

A 8251-771

Cage Codes:

Woodward, Inc. (CAGE 31361)

Schedule B & Trade:

Schedule B: 8481909090 (NAICS 332911)

Parts of taps, cocks, valves and similar appliances, nesoi
SITC: 74790

Parts for taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, etc.
End Use: 21180

Industrial machines, other

Identification:

HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

A - Item does not contain precious metal.

ESD

A - No known electrostatic discharge (esd) or electromagnetic interference (emi) sensitivity.

ADPE

- Represents items with no adp components

CRITL

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

Questions & Answers:
What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 4810-01-550-0770 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Spain
What is the NIIN of NSN 4810-01-550-0770?
015500770 or 01-550-0770
Does NSN 4810-01-550-0770 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4810-01-550-0770?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Apr 06, 2007