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Aircraft Air Conditioning, Heating, and Pressurizing Equipment

FSC 1660: Aircraft Air Conditioning, Heating, and Pressurizing Equipment

Federal Supply Class (FSC) 1660 covers environmental control system (ECS) components including air conditioning, heating, and pressurization equipment installed on military aircraft. Parts are sourced to MIL-SPEC and OEM standards.

These systems maintain cockpit and cabin temperature and pressure and provide cooling air for avionics. Habitability and equipment cooling are essential to crew effectiveness and mission system reliability.

Common items include air cycle machines, heat exchangers, pressurization controllers, valves, ducting, and cabin heaters. Components are built from aluminum, stainless steel, and high-temperature alloys to handle bleed air and thermal loads.

1660-00-452-0002 (CY00128-17-1)

NIIN: 00-452-0002 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-00-452-0002
FSC Code: 1660
MPN: CY00128171

1660-01-218-7698 (12750-17-93)

NIIN: 01-218-7698 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-218-7698
FSC Code: 1660
MPN: 127501793

1660-01-224-2704 (12750-16-94)

NIIN: 01-224-2704 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-224-2704
FSC Code: 1660
MPN: 127501694

1660-01-215-4520 (12750-1-801)

NIIN: 01-215-4520 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-215-4520
FSC Code: 1660
MPN: 127501801

1660-01-218-2672 (12750-16-95)

NIIN: 01-218-2672 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-218-2672
FSC Code: 1660
MPN: 127501695

1660-01-218-7697 (12750-10-93)

NIIN: 01-218-7697 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-218-7697
FSC Code: 1660
MPN: 127501093

1660-00-594-1599 (12743-1)

NIIN: 00-594-1599 DESC: THERMO SEAL GROMMET
In stock
NSN: 1660-00-594-1599
FSC Code: 1660
MPN: 127431

1660-00-400-5661 (4A90222-103A)

NIIN: 00-400-5661 DESC: AIRCRAFT COMPENSATOR ASSEMBLY
In stock
NSN: 1660-00-400-5661
FSC Code: 1660
MPN: 4A90222103A

1660-00-400-3922 (4A90222-101A)

NIIN: 00-400-3922 DESC: AIRCRAFT COMPENSATOR ASSEMBLY
In stock
NSN: 1660-00-400-3922
FSC Code: 1660
MPN: 4A90222101A

1660-99-710-8462 (H184-098553)

NIIN: 99-710-8462 DESC: PRESSURE BELLOWS
In stock
NSN: 1660-99-710-8462
FSC Code: 1660
MPN: H184098553

1660-99-710-8460 (H184-098554)

NIIN: 99-710-8460 DESC: PRESSURE BELLOWS
In stock
NSN: 1660-99-710-8460
FSC Code: 1660
MPN: H184098554

1660-99-650-5865 (1270D130)

NIIN: 99-650-5865 DESC: MATCHED SET TURBINE WHEEL
In stock
NSN: 1660-99-650-5865
FSC Code: 1660
MPN: 1270D130

1660-01-034-4585 (126-750082-1)

NIIN: 01-034-4585 DESC: RELEASE CABLE
In stock
NSN: 1660-01-034-4585
FSC Code: 1660
MPN: 1267500821

1660-01-034-4588 (126-750081-1)

NIIN: 01-034-4588 DESC: RELEASE CABLE
In stock
NSN: 1660-01-034-4588
FSC Code: 1660
MPN: 1267500811

1660-01-034-3803 (126-750083-1)

NIIN: 01-034-3803 DESC: LOCK CABLE
In stock
NSN: 1660-01-034-3803
FSC Code: 1660
MPN: 1267500831

1660-01-302-1006 (209-040-016-101)

NIIN: 01-302-1006 DESC: HYDRAULIC FAN ASSEMBLY
In stock
NSN: 1660-01-302-1006
FSC Code: 1660
MPN: 209040016101

1660-01-034-4584 (126-750080-1)

NIIN: 01-034-4584 DESC: MODE TRANSFE MODE SELECTOR CABLE
In stock
NSN: 1660-01-034-4584
FSC Code: 1660
MPN: 1267500801

1660-00-137-3908 (126-700167-1)

NIIN: 00-137-3908 DESC: RELEASE ACTUATOR CABLE
In stock
NSN: 1660-00-137-3908
FSC Code: 1660
MPN: 1267001671

1660-00-137-3909 (126-700167-3)

NIIN: 00-137-3909 DESC: RELEASE ACTUATOR CABLE
In stock
NSN: 1660-00-137-3909
FSC Code: 1660
MPN: 1267001673

1660-00-137-3911 (126-700169-3)

NIIN: 00-137-3911 DESC: MODE SELECTOR CABLE
In stock
NSN: 1660-00-137-3911
FSC Code: 1660
MPN: 1267001693

1660-00-909-7710 (MIL-PRF-26392)

NIIN: 00-909-7710 DESC: LIQUIDOXYGEN CONVERTER
In stock
NSN: 1660-00-909-7710
FSC Code: 1660
MPN: MILPRF26392

1660-00-626-7906 (12629-2)

NIIN: 00-626-7906 DESC: HOSE
In stock
NSN: 1660-00-626-7906
FSC Code: 1660
MPN: 126292

1660-00-890-3659 (4A92023-103B)

NIIN: 00-890-3659 DESC: BLEED AIR DUCT
In stock
NSN: 1660-00-890-3659
FSC Code: 1660
MPN: 4A92023103B

1660-00-676-3889 (12612-5)

NIIN: 00-676-3889 DESC: TURBINE E DUCT ASSY
In stock
NSN: 1660-00-676-3889
FSC Code: 1660
MPN: 126125

1660-00-507-5337 (PS135300)

NIIN: 00-507-5337 DESC: VALVE DISK
In stock
NSN: 1660-00-507-5337
FSC Code: 1660
MPN: PS135300

1660-00-767-7675 (PS135300)

NIIN: 00-767-7675 DESC: VALVE DISK
In stock
NSN: 1660-00-767-7675
FSC Code: 1660
MPN: PS135300

1660-01-362-6943 (65664-09806-101)

NIIN: 01-362-6943 DESC: AIRC AIR TO WATER HEAT EXCHANGER
In stock
NSN: 1660-01-362-6943
FSC Code: 1660
MPN: 6566409806101

1660-00-894-5014 (125D0300-1)

NIIN: 00-894-5014 DESC: BAROMETRICCONT OXYGEN REGULATOR
In stock
NSN: 1660-00-894-5014
FSC Code: 1660
MPN: 125D03001

1660-00-337-4893 (125A0131)

NIIN: 00-337-4893 DESC: VENT SCREEN
In stock
NSN: 1660-00-337-4893
FSC Code: 1660
MPN: 125A0131

1660-01-167-0627 (125B200-1)

NIIN: 01-167-0627 DESC: ASSEMBLY MINI ACTUATOR
In stock
NSN: 1660-01-167-0627
FSC Code: 1660
MPN: 125B2001

1660-00-091-4308 (125B0121)

NIIN: 00-091-4308 DESC: BODY AND PISTON ASS
In stock
NSN: 1660-00-091-4308
FSC Code: 1660
MPN: 125B0121

1660-00-337-4895 (125A0144)

NIIN: 00-337-4895 DESC: RELIEF UPPER WEIGHT
In stock
NSN: 1660-00-337-4895
FSC Code: 1660
MPN: 125A0144

1660-00-340-0620 (125A0145)

NIIN: 00-340-0620 DESC: REGULAT BUTTON ASSY
In stock
NSN: 1660-00-340-0620
FSC Code: 1660
MPN: 125A0145

1660-00-037-2887 (125B0137)

NIIN: 00-037-2887 DESC: BALL RETAINING RING
In stock
NSN: 1660-00-037-2887
FSC Code: 1660
MPN: 125B0137

1660-00-333-0925 (125A0154)

NIIN: 00-333-0925 DESC: RELIEF VALVE CAP
In stock
NSN: 1660-00-333-0925
FSC Code: 1660
MPN: 125A0154

1660-00-037-2886 (125B0135)

NIIN: 00-037-2886 DESC: RING
In stock
NSN: 1660-00-037-2886
FSC Code: 1660
MPN: 125B0135

1660-00-340-0619 (125A0125)

NIIN: 00-340-0619 DESC: STEM AND PIVOT ASSY
In stock
NSN: 1660-00-340-0619
FSC Code: 1660
MPN: 125A0125

1660-00-337-4894 (125A0134)

NIIN: 00-337-4894 DESC: RELIEF LOWER WEIGHT
In stock
NSN: 1660-00-337-4894
FSC Code: 1660
MPN: 125A0134

1660-00-337-4900 (125A0163)

NIIN: 00-337-4900 DESC: VALVE BODY SCREEN
In stock
NSN: 1660-00-337-4900
FSC Code: 1660
MPN: 125A0163

1660-00-337-4898 (125A0153)

NIIN: 00-337-4898 DESC: RELIEF VALVE BODY
In stock
NSN: 1660-00-337-4898
FSC Code: 1660
MPN: 125A0153

1660-00-630-2586 (12598-41-4)

NIIN: 00-630-2586 DESC: AIRCON SLIDERASSY
In stock
NSN: 1660-00-630-2586
FSC Code: 1660
MPN: 12598414

1660-01-473-6419 (1660PL1946507)

NIIN: 01-473-6419 DESC: AIR CONDITIONING FILTER ELEMENT
In stock
NSN: 1660-01-473-6419
FSC Code: 1660
MPN: 1660PL1946507

1660-01-034-4580 (125-6028-2)

NIIN: 01-034-4580 DESC: SPACER
In stock
NSN: 1660-01-034-4580
FSC Code: 1660
MPN: 12560282

1660-00-535-3042 (12548-3)

NIIN: 00-535-3042 DESC: AIR TURBINE DRIVE SHAFT
In stock
NSN: 1660-00-535-3042
FSC Code: 1660
MPN: 125483

1660-00-621-8113 (12547-7)

NIIN: 00-621-8113 DESC: VALVE BODY
In stock
NSN: 1660-00-621-8113
FSC Code: 1660
MPN: 125477

1660-00-050-0487 (12538-1)

NIIN: 00-050-0487 DESC: CONTROL PISTON
In stock
NSN: 1660-00-050-0487
FSC Code: 1660
MPN: 125381

1660-00-775-9219 (1253-24)

NIIN: 00-775-9219 DESC: FAN GUARD
In stock
NSN: 1660-00-775-9219
FSC Code: 1660
MPN: 125324

1660-00-196-9760 (1253031-3)

NIIN: 00-196-9760 DESC: HEATER ADAPTER
In stock
NSN: 1660-00-196-9760
FSC Code: 1660
MPN: 12530313