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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.

1660-01-738-3476 (326P9N2124-102)

NIIN: 01-738-3476 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-738-3476
FSC Code: 1660
MPN: 326P9N2124102

1660-01-738-2220 (326P1N5063-203)

NIIN: 01-738-2220 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-738-2220
FSC Code: 1660
MPN: 326P1N5063203

1660-01-738-2186 (326P9N2113-206)

NIIN: 01-738-2186 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-738-2186
FSC Code: 1660
MPN: 326P9N2113206

1660-01-738-2192 (326P9N2126-202)

NIIN: 01-738-2192 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-738-2192
FSC Code: 1660
MPN: 326P9N2126202

1660-01-738-2291 (326P1N5131-201)

NIIN: 01-738-2291 DESC: AIRCRAFT HEATING AN AIR DIFFUSER
In stock
NSN: 1660-01-738-2291
FSC Code: 1660
MPN: 326P1N5131201

1660-01-738-2613 (326P1S0455-101)

NIIN: 01-738-2613 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-738-2613
FSC Code: 1660
MPN: 326P1S0455101

1660-01-738-3499 (326P9N2125-201)

NIIN: 01-738-3499 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-738-3499
FSC Code: 1660
MPN: 326P9N2125201

1660-01-738-2211 (326C1J0023-201)

NIIN: 01-738-2211 DESC: AIRCRAF OXYGEN CYLINDER ASSEMBLY
In stock
NSN: 1660-01-738-2211
FSC Code: 1660
MPN: 326C1J0023201

1660-01-738-2190 (326P9N2125-202)

NIIN: 01-738-2190 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-738-2190
FSC Code: 1660
MPN: 326P9N2125202

1660-01-738-4743 (326P9N3120-203)

NIIN: 01-738-4743 DESC: AIR CONDITIONING-HEATING ELBOW
In stock
NSN: 1660-01-738-4743
FSC Code: 1660
MPN: 326P9N3120203

1660-01-738-2180 (326C1J0022-201)

NIIN: 01-738-2180 DESC: AIRCRAFT OXYGEN FILLER VALVE
In stock
NSN: 1660-01-738-2180
FSC Code: 1660
MPN: 326C1J0022201

1660-01-737-6389 (ACX 19-2416-20)

NIIN: 01-737-6389 DESC: AIRCRAFT AIR CON WATER SEPARATOR
In stock
NSN: 1660-01-737-6389
FSC Code: 1660
MPN: ACX19241620

1660-01-738-4567 (326P9N2126-201)

NIIN: 01-738-4567 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-738-4567
FSC Code: 1660
MPN: 326P9N2126201

1660-01-738-2157 (3261216-0601)

NIIN: 01-738-2157 DESC: AIRCRAFT OXYGEN CONCENTRATOR
In stock
NSN: 1660-01-738-2157
FSC Code: 1660
MPN: 32612160601

1660-01-737-7711 (LB033070-101)

NIIN: 01-737-7711 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-7711
FSC Code: 1660
MPN: LB033070101

1660-01-738-4699 (326P9N3114-103)

NIIN: 01-738-4699 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-738-4699
FSC Code: 1660
MPN: 326P9N3114103

1660-01-737-8544 (6A12FN6C08L-1125)

NIIN: 01-737-8544 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-8544
FSC Code: 1660
MPN: 6A12FN6C08L1125

1660-01-737-7355 (36161424)

NIIN: 01-737-7355 DESC: THERMAL INSULATION PIPE COVERING
In stock
NSN: 1660-01-737-7355
FSC Code: 1660
MPN: 36161424

1660-01-737-5618 (1TD1364F20137-2001)

NIIN: 01-737-5618 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-5618
FSC Code: 1660
MPN: 1TD1364F201372001

1660-01-738-1546 (17P2N4150-503)

NIIN: 01-738-1546 DESC: AIRCR THERMAL INSULATION BLANKET
In stock
NSN: 1660-01-738-1546
FSC Code: 1660
MPN: 17P2N4150503

1660-01-737-8833 (7327-6A6A-0813)

NIIN: 01-737-8833 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-8833
FSC Code: 1660
MPN: 73276A6A0813

1660-01-737-5620 (1TD1364F20138-1001)

NIIN: 01-737-5620 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-5620
FSC Code: 1660
MPN: 1TD1364F201381001

1660-01-737-4455 (143190-101)

NIIN: 01-737-4455 DESC: METAL GRILLE
In stock
NSN: 1660-01-737-4455
FSC Code: 1660
MPN: 143190101

1660-01-737-4161 (213N1100-50)

NIIN: 01-737-4161 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-4161
FSC Code: 1660
MPN: 213N110050

1660-01-737-5616 (1TD1364F20137-1001)

NIIN: 01-737-5616 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-5616
FSC Code: 1660
MPN: 1TD1364F201371001

1660-01-737-4702 (1TD1364F20138-1003)

NIIN: 01-737-4702 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-4702
FSC Code: 1660
MPN: 1TD1364F201381003

1660-01-737-8541 (6A12FN6C08L-0651)

NIIN: 01-737-8541 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-8541
FSC Code: 1660
MPN: 6A12FN6C08L0651

1660-01-737-4417 (3311198-3)

NIIN: 01-737-4417 DESC: SEPARATOR PARTS KIT
In stock
NSN: 1660-01-737-4417
FSC Code: 1660
MPN: 33111983

1660-01-737-7710 (LB033069-101)

NIIN: 01-737-7710 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-7710
FSC Code: 1660
MPN: LB033069101

1660-01-737-6945 (36161414)

NIIN: 01-737-6945 DESC: THERMAL INSULATION PIPE COVERING
In stock
NSN: 1660-01-737-6945
FSC Code: 1660
MPN: 36161414

1660-01-737-4460 (143190-102)

NIIN: 01-737-4460 DESC: METAL GRILLE
In stock
NSN: 1660-01-737-4460
FSC Code: 1660
MPN: 143190102

1660-01-737-8828 (6A16FN6A16M-0813)

NIIN: 01-737-8828 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-8828
FSC Code: 1660
MPN: 6A16FN6A16M0813

1660-01-737-8108 (5VE00106-109)

NIIN: 01-737-8108 DESC: COOLING SYSTEM PUMP CONTROLLER
In stock
NSN: 1660-01-737-8108
FSC Code: 1660
MPN: 5VE00106109

1660-01-737-6786 (LG00885-101)

NIIN: 01-737-6786 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-6786
FSC Code: 1660
MPN: LG00885101

1660-01-737-4465 (143195-101)

NIIN: 01-737-4465 DESC: METAL GRILLE
In stock
NSN: 1660-01-737-4465
FSC Code: 1660
MPN: 143195101

1660-01-736-4776 (11041-255-5..888)

NIIN: 01-736-4776 DESC: AIRCRAFT HEATER PACKAGE
In stock
NSN: 1660-01-736-4776
FSC Code: 1660
MPN: 110412555888

1660-01-737-7657 (36161420)

NIIN: 01-737-7657 DESC: AIR CONDITIONING-HEATING PIPE
In stock
NSN: 1660-01-737-7657
FSC Code: 1660
MPN: 36161420

1660-01-737-0806 (1649448-1)

NIIN: 01-737-0806 DESC: OXYGEN FLOW INDICATOR
In stock
NSN: 1660-01-737-0806
FSC Code: 1660
MPN: 16494481

1660-01-735-8761 (IAE4J12034)

NIIN: 01-735-8761 DESC: AIRCRAFT COMPENSATOR ASSEMBLY
In stock
NSN: 1660-01-735-8761
FSC Code: 1660
MPN: IAE4J12034

1660-01-737-4462 (G010-1281-11)

NIIN: 01-737-4462 DESC: AIRCRAFT OXYGEN MASK HARDSHELL
In stock
NSN: 1660-01-737-4462
FSC Code: 1660
MPN: G010128111

1660-01-737-4451 (G010-1281-12)

NIIN: 01-737-4451 DESC: AIRCRAFT OXYGEN MASK HARDSHELL
In stock
NSN: 1660-01-737-4451
FSC Code: 1660
MPN: G010128112

1660-01-737-5623 (1TD1364F20138-2003)

NIIN: 01-737-5623 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-737-5623
FSC Code: 1660
MPN: 1TD1364F201382003

1660-01-735-5081 (17P2N4150-513)

NIIN: 01-735-5081 DESC: AIRCR THERMAL INSULATION BLANKET
In stock
NSN: 1660-01-735-5081
FSC Code: 1660
MPN: 17P2N4150513

1660-01-735-7003 (ACX 19-2416-90)

NIIN: 01-735-7003 DESC: AIRCRAFT AIR OUTLET HOUSING
In stock
NSN: 1660-01-735-7003
FSC Code: 1660
MPN: ACX19241690

1660-01-734-0236 (M7891LM-4)

NIIN: 01-734-0236 DESC: AIRCRAFT OXYGEN FILLER VALVE
In stock
NSN: 1660-01-734-0236
FSC Code: 1660
MPN: M7891LM4

1660-01-735-0327 (791A4063-107)

NIIN: 01-735-0327 DESC: AIR CONDITIONING-H DUCT ASSEMBLY
In stock
NSN: 1660-01-735-0327
FSC Code: 1660
MPN: 791A4063107

1660-01-734-1161 (433210540)

NIIN: 01-734-1161 DESC: AIR CONDITIONING MANIFOLD NOZZLE
In stock
NSN: 1660-01-734-1161
FSC Code: 1660
MPN: 433210540

1660-01-733-9716 (1093310)

NIIN: 01-733-9716 DESC: ELECTRICAL HEATING BLANKET
In stock
NSN: 1660-01-733-9716
FSC Code: 1660
MPN: 1093310