Honeywell - APU Capabilities Component Lookup

An auxiliary power unit (APU) serves as an additional and supplementary power source for the machine it is mounted on. Larger aircraft such as commercial passenger jets use APUs for multiple purposes; while normally used to start the main engines on the aircraft, the APU can also be used to power onboard lighting, cockpit avionics, and the interior heating and cooling systems of the aircraft. Using an APU instead of the aircraft’s main engines saves on fuel and maintenance devoted to a more expensive and intricate power plant.

In most situations, the APU is shut off before takeoff and reactivated when the aircraft lands. While the APU is typically only operated when on the ground, an APU can be used as an emergency power source while the aircraft is flying.

The APU is a small turbine engine installed at the rear of the fuselage, typically in the tail of the aircraft. Calling the APU an extra jet engine is not accurate, however. This is because an APU’s exhaust is vented overboard, rather than compressed and used for thrusting to propel the aircraft forward.

APUs are found on most medium-size and larger civilian and military jets. Smaller aircraft do not mount APUs because of the extra weight and structure requirements that they impose. APUs can also be found on spacecraft, naval vessels, and even semi-truck trailers and train cars carrying frozen food to run the refrigeration system.

At NSN Parts Now, owned and operated by ASAP Semiconductor, we supply APU parts and systems manufactured by Honeywell International Inc.

Part No APU Description QTY RFQ
PartNumber APU description Avl RFQ
979806-X 331-200 surge control valve (scv) Avl RFQ
979786-5 331-350 load control valve Avl RFQ
979786-4 331-350 load control valve Avl RFQ
979786-2 331-350 load control valve Avl RFQ
978602-X-1 660 pneumatic butterfly shutoff valve Avl RFQ
978564-1-1 660 pneumatic butterfly shutoff valve Avl RFQ
977969-X TSCP700-4B secondary fuel manifolds Avl RFQ
977968-X TSCP700-4B primary fuel manifolds Avl RFQ
977250-X TSCP700-4B fuel pump Avl RFQ
969900-X TSCP700-4B fuel control unit Avl RFQ
969822-X TSCP700-4B oil pump Avl RFQ
968348-X 660 oil pump Avl RFQ
968214-6 331-200 pressure relief valve Avl RFQ
968214-10 TSCP700-4B pressure relief valve Avl RFQ
967450-3 331-200 drain valve Avl RFQ
966595-X 660 fuel metering valve Avl RFQ
899727-X 660 fuel pump Avl RFQ
892771-3 660 ignitor lead Avl RFQ
7800298-1-7 331-200ER gtcp331-200er gas turbine compressor power unit Avl RFQ
771-527-9002 331-200 shuttle valve Avl RFQ
771-503-9023 331-200 check valve Avl RFQ
665515-X TSCP700-4B safety relief valve Avl RFQ
519858-X 331-200 starter motor Avl RFQ
519806-X 660 starter Avl RFQ
519802-X 660 starter Avl RFQ
441761-9 331-500 fuel cluster Avl RFQ
441761-8 331-500 fuel cluster Avl RFQ
441761-7 331-500 fuel cluster Avl RFQ
441761-6 331-500 fuel cluster Avl RFQ
441761-10 331-500 fuel cluster Avl RFQ
43960-1 660 wiring harness Avl RFQ
43911-X TSCP700-4B wire harness Avl RFQ
43905-X 660 wiring harness Avl RFQ
43893-X TSCP700-4B wire harness Avl RFQ
4132136-1 131-9A regulator & relief valve Avl RFQ
4131000-6 331-500 lube cluster Avl RFQ
397728-X 331-200 fan shutoff valve Avl RFQ
3888571-1 331-350 wiring harness Avl RFQ
3888559-1 331-350 wiring harness Avl RFQ
3888500-1 TSCP700-4B wire harness Avl RFQ
3888465-X 331-200 wiring harness assy Avl RFQ
3888449-1 131-9A wire harness Avl RFQ
3888448-X 131-9A wire harness Avl RFQ
3888438-1 131-9A wire harness 131-9[a] Avl RFQ
3888364-4 331-500 wiring harness Avl RFQ
3888364-3 331-500 wiring harness Avl RFQ
3888297-3 331-350 wiring harness Avl RFQ
3888297-2 331-350 wiring harness Avl RFQ
3888297-1 331-350 wiring harness Avl RFQ
3888283-4 331-500 lead Avl RFQ
3888283-3 331-500 lead Avl RFQ
3888283-2 331-500 lead Avl RFQ
3888283-1 331-500 lead Avl RFQ
3888280-1 331-350 wiring harness Avl RFQ
3888275-9 331-500 ignition cluster Avl RFQ
3888275-8 331-500 ignition cluster Avl RFQ
3888275-7 331-500 ignition cluster Avl RFQ
3888275-10 331-500 ignition cluster Avl RFQ
3888217-4 331-350 starter motor Avl RFQ
3888217-3 331-350 starter motor Avl RFQ
3888217-2 331-350 starter motor Avl RFQ
3888123-X 331-200 wiring harness assy Avl RFQ
3888076-X 331-200 igniter plug lead Avl RFQ
3884863-6 331-500 pneumatic cluster Avl RFQ
3884703-6 331-200/250 seal retaining Avl RFQ
3884703-1 331-200/250 seal retaining Avl RFQ
3884647-1 331-350 load compressor sensor assy Avl RFQ
3883890-2 331-350 fuel nozzle assy Avl RFQ
3883890-1 331-350 fuel nozzle assy Avl RFQ
3883453-1 331-500 fuel nozzle Avl RFQ
3883297-7 331-350 flow divider assy Avl RFQ
3883297-6 331-350 flow divider assy Avl RFQ
3883297-5 331-350 flow divider assy Avl RFQ
3883297-4 331-350 flow divider assy Avl RFQ
3883297-2 331-350 flow divider assy Avl RFQ
3883277-1 TSCP700-4B flow divider (700-4e) Avl RFQ
3883229-X TSCP700-4B fuel control unit (700-4e) Avl RFQ
3882883-1 TSCP700-4B drain valve assy Avl RFQ
3882639-X 331-200 fuel check valve Avl RFQ
3882639-1 TSCP700-4B fuel check valve Avl RFQ
3882550-X 331-200 flow divider Avl RFQ
3882500-X 331-200 fuel control unit Avl RFQ
3882492-X 331-200 secondary manifolds Avl RFQ
3882491-X 331-200 primary manifolds Avl RFQ
3882482-2 TSCP700-4B pressure relief valve Avl RFQ
3882482 331-200 pressure relief valve Avl RFQ
3882481-1 331-200 fuel filter bypass valve Avl RFQ
3881000-7 331-350 oil pump assy Avl RFQ
3881000-6 331-350 oil pump assy Avl RFQ

Instant RFQ

Guaranteed quotes back within 15 minutes, 24/7 x 365


Quality guaranteed We sell only warrantied and traceable parts
Find it fast Search the world's largest inventory of electronic components by manufacturer, category or part number
Low Price Warrantied inventory at competitive prices
Get it fast All inventory ready to ship from our sellers
Semiconductor's Certifications and Memberships

Thanks for Visiting!

Before You Leave, Consider Taking a Look at Our NSN Parts Catalog. Don’t forget That We Can offer Same-Day Shipping On Most of Our Inventory!

Request for Quote