Contractor	Responsible Center	Contract
		Task	Amount (millions)
.
McDonnell Douglas Astronautics	MSFC	Orbital workshop	$383.3
Rockwell International	JSC	Command and service modules	354.3
McDonnell Douglas Astronautics	MSFC	Airlock module	267.7
Martin Marietta	MSFC	Payload integration and multiple docking adapter assembly	215.5
Martin Marietta	JSC	Payload and experiments integration and spacecraft support	105.4
McDonnell Douglas Astronautics	KSC	S-IVB launch services	58.9
Naval Research Laboratory	MSFC	S082A, B, ultraviolet spectroheliograph and spectrograph	40.9
Harvard College Observatory	MSFC	S055 ultraviolet spectrometer	34.6
International Business Machines	MSFC	Instrument unit	30.7
Chrysler	MSFC	S-IB stage	30.0
General Electric	JSC	Reliability and quality assurance systems engineering for auto. checkout equipment	29.7
International Business Machines	MSFC	Apollo telescope mount digital computer	29.2
McDonnell Douglas Astronautics	MSFC	S-IVB stage	25.7
General Electric	MSFC	Electrical support equipment, logistic support	25.0
Chrysler	KSC	S-IB launch operations support	23.2
Rockwell International	KSC	Command and service module support	17.5
International Latex Corp.	JSC	Spacesuits	16.9
High Altitude Observatory	MSFC	S052 white light coronagraph	14.7
Boeing	KSC	Saturn V vehicle and launch operations support	14.4
General Electric	MSFC	Launch vehicle ground support equipment	12.6
International Business Machines	KSC	Instrument unit launch services	12.3
Garrett	JSC	Portable astronaut life support assembly	11.9
General Electric	JSC	S193 microwave radiometer-scatterometer	11.3
Martin Marietta	Hqs.	Program support	11.1
Honeywell	JSC	S192 10-band multispectral scanner	10.8
Rockwell International	MSFC	Saturn engine support, Saturn V and IB	10.3
American Science & Engineering	MSFC	S054 x-ray spectrographic telescope	8.3
Boeing	MSFC	Systems engineering and integration	7.4
Martin Marietta	KSC	Multiple docking adapter support	7.2
Chrysler	MSFC	S-IB systems and integration	7.0
Itek	JSC	S-190 multispectral photographic facility	2.7
Goddard Space Flight Center	MSFC	S056 dual x-ray telescope	2.5
Block Engineering	JSC	S191 infrared spectrometer	2.0
Cutler Hammer Airborne Instruments	JSC	S194 L-band radiometer	1.5
Boeing	MSFC	S-IC stage	0.9
Delco Electronics	KSC	Navigation and guidance launch operations	0.9

SOURCE: Senate Committee on Aeronautical and Space Sciences, Skylab: Status of Skylab Mission, hearing, 93d Congress, 1st sess., 23 May 1973, p.25.

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