- Awards (8,591)
- Insignias (6,758)
- Works of art (4,510)
- Personal equipment (2,483)
- Equipment (2,229)
- Memorabilia (1,881)
- Medals (1,678)
- Posters (1,411)
- Drawings (1,358)
- Computers (1,276)
- Models (1,224)
- Rockets (1,006)
- Components (objects) (994)
- Aircraft (934)
- Prints (918)
- Originals (915)
- Engines (864)
- Propulsion systems (832)
- Avionics (811)
- Archival materials (636)
- Collection descriptions (636)
- Flight instruments (611)
- Missiles (541)
- Paintings (537)
- Crewed spacecraft (533)
- Communication systems (mechanical and electrical systems) (511)
- Photographic equipment (476)
- Navigational instruments (437)
- Uncrewed spacecraft (416)
- Testing equipment (404)
- Scientific instruments (384)
- Protective and life-saving equipment (363)
- Photographs (330)
- Handwear (326)
- Headgear (315)
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- Instruments (313)
- Weapons (302)
- Spacesuits (282)
- Costume accessories (271)
- Culinary equipment for serving and consuming food (255)
- Food (255)
- Tools (246)
- Reciprocating (piston) engines (226)
- Rotary engines (226)
- Sights (firearm component) (212)
- Clothing (204)
- Protective wear (204)
- Engines (power producing equipment) (194)
- Propellers (173)
- Impellers (161)
- Autopilots (137)
- Correspondence (137)
- Radar (127)
- Medical equipment (124)
- Military uniforms (124)
- Artificial satellites (120)
- Personal equipment: grooming, hygiene and health care (112)
- Payloads (111)
- Uniforms (100)
- Footwear (98)
- Electrical systems (92)
- Scrapbooks (89)
- Trophies (76)
- Wind tunnels (60)
- Instructional materials (57)
- Publications (52)
- Parachutes (life-saving equipment) (49)
- Jet aircraft (44)
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- Clippings (41)
- Maps (41)
- Rotorcraft (40)
- Ammunition (35)
- Certificates (35)
- Textiles (32)
- Photographic prints (30)
- Breathing devices (29)
- Photograph albums (28)
- Reproductions (26)
- Sculpture (25)
- Reports (24)
- Diaries (23)
- Postage stamps (22)
- Bombs (explosive weapons) (21)
- Gigabytes (21)
- Baloons (aircraft) (18)
- Ephemera (18)
- Rotocraft (18)
- Underwear (18)
- Financial records (17)
- Manuscripts (17)
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- Digital images (16)
- Articles (14)
- Negatives (13)
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- Science fiction (13)
- Art (4,485)
- Aeronautics (1,304)
- Popular culture (1,057)
- Outer space (928)
- Human spaceflight (677)
- Navigation (612)
- Photography (480)
- War (413)
- Science (390)
- Spaceflight (322)
- Moon (170)
- Airlines (145)
- Aeronautics, Military (128)
- World War, 1939-1945 (92)
- World War, 1914-1918 (84)
- Air pilots (81)
- Aeronautics, Commercial (79)
- Airplanes (79)
- Electronic apparatus and appliances (73)
- Astronautics (57)
- Women air pilots (40)
- Airships (35)
- Periodicals (35)
- Women in aeronautics (31)
- Balloons (29)
- WW II (28)
- WW I (27)
- Aircraft industry (22)
- Philately (22)
- Aerial photography (20)
- Space flight (19)
- Extravehicular activity (Human spaceflight) (17)
- Astronauts (16)
- Flight training (14)
- Manned space flight (14)
- Airplane racing (13)
- Design (12)
- Manufacturing industries (12)
- Vietnam War, 1961-1975 (12)
- Air traffic control (11)
- Airports (11)
- Naval aviation (11)
- Air mail service (10)
- Works of art (10)
- Cold War (9)
- Flights around the world (9)
- Air travel (8)
- Airplanes, Military (8)
- Apollo Project (8)
- Helicopters (8)
- Ryan NYP "Spirit of St. Louis" (8)
- Transatlantic flights (8)
- Aeronautical engineers (7)
- Artificial satellites (7)
- Ballooning (7)
- Boeing B-29 Superfortress (7)
- Douglas World Cruiser (DWC) (7)
- Gliding and soaring (7)
- Korean War, 1950-1953 (7)
- Rockets (Aeronautics) (7)
- de Havilland (Airco) D.H.4 (7)
- African American air pilots (6)
- Curtiss JN-4 Jenny Family (6)
- Kites (6)
- Photographs (6)
- Propulsion systems (6)
- Zeppelin LZ 129 Hindenburg (6)
- Aeronautical sports (5)
- Aircraft (5)
- Boeing B-29 Superfortress, Silverplate "Enola Gay" (5)
- Curtiss, General, Aircraft (5)
- Dayton Wright DH-4 (5)
- Fighter pilots (5)
- Lockheed P-38 Lightning Family (5)
- Rocketry (5)
- Seaplanes (5)
- Space suits (5)
- ZR-1 Shenandoah (5)
- Aircraft carriers (4)
- Apollo 11 Flight (4)
- Astronomy (4)
- Burgess Aircraft Family (4)
- Endurance flights (4)
- Flight attendants (4)
- Gliders (Aeronautics) (4)
- Lockheed Model 10-E Electra, Earhart Aircraft (NR16020) (4)
- Mercury Project (4)
- Project Apollo (U.S.) (4)
- Republic P-47 (F-47) Thunderbolt Family (4)
- SPAD XIII (S.13) (4)
- Space Shuttle Program (U.S.) (4)
- Space vehicles (4)
- Technical manuals (4)
- United States Air Force (4)
- Wright (Co) Model B (4)
- Aerial reconnaissance (3)
- Astronautics, Military (3)
- Autogiros (3)
- Aviation medicine (3)
- Balloonists (3)
Our collections specialists actively work on the conservation, preservation, restoration, and long-term care of the objects in our collection. From full-scale restoration projects to applying preservation techniques and doing regular assessments, these activities form a crucial part of our stewardship of the National Collection.