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ATA 51 Structure Parts Catalog - Explore Now

The ATA numbering system, also known as the Air Transport Association (ATA) chapters, is a widely recognized and standardized system used in the aviation industry to document parts, components, and entire commercial aircraft. This system, like many others in the aerospace industry, serves to provide a common understanding for pilots, maintenance technicians, engineers, and others involved in aircraft operations.

The ATA 100 system is divided into several sections, with one of them being the ATA Group. Each group contains specific ATA chapters such as ATA Group – Structure, one of which refers specifically to the components listed under ATA Chapter 51. It’s provide important information on aircraft systems such as electrical power, fire protection, fuel, navigation, hydraulic, and more. If you’re in search of ATA Structure or other ATA names, Aviation Parts Circuit is your one-stop-shop. We specializes in supplying ATA chapters parts of ATA 51 under ATA Group Structure.


Part No Description ATA Number ATA Chapter RFQ
140W2810-13 valve assy 51 Standard Practices And Structures - General RFQ
457U2800-142 tube 51 Standard Practices And Structures - General RFQ
232N1003-19 threshold 51 Standard Practices And Structures - General RFQ
T0-12WN tee 51 Standard Practices And Structures - General RFQ
116U6190-7 rod assy 51 Standard Practices And Structures - General RFQ
BCREF55333 tube 51 Standard Practices And Structures - General RFQ
457U2800-147 tube 51 Standard Practices And Structures - General RFQ
141N5273-11 weld assy 51 Standard Practices And Structures - General RFQ
103A1001-9 valve instl 51 Standard Practices And Structures - General RFQ
116U6123-6 rib assy 51 Standard Practices And Structures - General RFQ
65B17416-6 clip 51 Standard Practices And Structures - General RFQ
451U3004-86 tube 51 Standard Practices And Structures - General RFQ
232N1003-12 threshold 51 Standard Practices And Structures - General RFQ
BACF3H10JH023AG filler 51 Standard Practices And Structures - General RFQ
457U2801-10 tube 51 Standard Practices And Structures - General RFQ
BACR15FT5D4R5C rivet 51 Standard Practices And Structures - General RFQ
284U1136-3 plenum assy 51 Standard Practices And Structures - General RFQ
146N3805-5 seal 51 Standard Practices And Structures - General RFQ
65B17393-13 adapter assy 51 Standard Practices And Structures - General RFQ
457U2815-54 hinge 51 Standard Practices And Structures - General RFQ
65B17459-21 weld assy 51 Standard Practices And Structures - General RFQ
284U1104-6 tube 51 Standard Practices And Structures - General RFQ
457U2815-9 hinge assy 51 Standard Practices And Structures - General RFQ
116U6226-1 rib 51 Standard Practices And Structures - General RFQ
140W2810-34 plunger 51 Standard Practices And Structures - General RFQ
747-25-3520NC0013-1 bracket assy 51 Standard Practices And Structures - General RFQ
747-53-2746NC0193-1 fitting 51 Standard Practices And Structures - General RFQ
814B2568-24 support instl 51 Standard Practices And Structures - General RFQ
284U1136-8 plenum assy 51 Standard Practices And Structures - General RFQ
65B62112-5 pan assy 51 Standard Practices And Structures - General RFQ
65B48056-37 filler 51 Standard Practices And Structures - General RFQ
IT4350-643 hose 51 Standard Practices And Structures - General RFQ
146N5419-1 gutter assy 51 Standard Practices And Structures - General RFQ
232N1002-5SP tread 51 Standard Practices And Structures - General RFQ
457U2815-28 bracket 51 Standard Practices And Structures - General RFQ
287U0029-1 clip assy 51 Standard Practices And Structures - General RFQ
65B03851-13 scupper assy 51 Standard Practices And Structures - General RFQ
BACB30US9K26 bolt 51 Standard Practices And Structures - General RFQ
65B26633-39 tube 51 Standard Practices And Structures - General RFQ
015U0399-2 fitting 51 Standard Practices And Structures - General RFQ
65B63880-3 doubler assy 51 Standard Practices And Structures - General RFQ
BACF3T01L42-10 filler 51 Standard Practices And Structures - General RFQ
457U2800-158 tube 51 Standard Practices And Structures - General RFQ
140W2810-21 plunger 51 Standard Practices And Structures - General RFQ
MS20253P3-2309L pin 51 Standard Practices And Structures - General RFQ
BCREF75441 fitting 51 Standard Practices And Structures - General RFQ
814B2568-21 support instl 51 Standard Practices And Structures - General RFQ
451U3004-83 tube 51 Standard Practices And Structures - General RFQ
NAS1803-3A5 nutplate 51 Standard Practices And Structures - General RFQ
BACF3F009C050AN filler 51 Standard Practices And Structures - General RFQ
284T1213-7 spud assy 51 Standard Practices And Structures - General RFQ
65B04221-611 tube 51 Standard Practices And Structures - General RFQ
BACB28AT08B028C bushing 51 Standard Practices And Structures - General RFQ
116U3230-1 filler 51 Standard Practices And Structures - General RFQ
284U1135-88 gutter assy 51 Standard Practices And Structures - General RFQ
IT-4350-643 hose 51 Standard Practices And Structures - General RFQ
457U2815-53 plate assy 51 Standard Practices And Structures - General RFQ
140U0405-6 reducer 51 Standard Practices And Structures - General RFQ
65B63857-68 tube 51 Standard Practices And Structures - General RFQ
BACR11X4 receptacle 51 Standard Practices And Structures - General RFQ
BACG20ZA000444 grommet 51 Standard Practices And Structures - General RFQ
457U2801-28 tube 51 Standard Practices And Structures - General RFQ
144N8087-15 hose 51 Standard Practices And Structures - General RFQ
116U6116-5 rib assy 51 Standard Practices And Structures - General RFQ
657N4421-1 angle assy 51 Standard Practices And Structures - General RFQ
141N5270-33 tube fitting 51 Standard Practices And Structures - General RFQ
143N5441-25 tube 51 Standard Practices And Structures - General RFQ
284U1135-65 gutter assy 51 Standard Practices And Structures - General RFQ
65B17460-14 valve assy 51 Standard Practices And Structures - General RFQ
457U2800-25 tube 51 Standard Practices And Structures - General RFQ
457U2815-6 bracket 51 Standard Practices And Structures - General RFQ
140U0405-2 reducer 51 Standard Practices And Structures - General RFQ
69B70420-7 plate 51 Standard Practices And Structures - General RFQ
BACS40R014E026F shim 51 Standard Practices And Structures - General RFQ
2709813-1 fitting 51 Standard Practices And Structures - General RFQ
451U3004-17 tube 51 Standard Practices And Structures - General RFQ
451U3004-35 tube 51 Standard Practices And Structures - General RFQ
814B1548-12 doubler 51 Standard Practices And Structures - General RFQ
116U6115-3 rib assy 51 Standard Practices And Structures - General RFQ
BCREF79126 fitting 51 Standard Practices And Structures - General RFQ
284U1104-3 tube 51 Standard Practices And Structures - General RFQ
141T4928-3 fitting 51 Standard Practices And Structures - General RFQ
457U2801-44 tube 51 Standard Practices And Structures - General RFQ
NAS462XDD10H spacer 51 Standard Practices And Structures - General RFQ
232N1003-11 threshold 51 Standard Practices And Structures - General RFQ
65B17460-11 weld assy 51 Standard Practices And Structures - General RFQ
284U1104-25 gutter assy 51 Standard Practices And Structures - General RFQ
116U6123-7 rib assy 51 Standard Practices And Structures - General RFQ
103A1001-6 valve instl 51 Standard Practices And Structures - General RFQ
BACB30MR6A17 bolt 51 Standard Practices And Structures - General RFQ
747-53-2670NC0152-2 fitting 51 Standard Practices And Structures - General RFQ
116U5230-238 barrier 51 Standard Practices And Structures - General RFQ
BCREF56216 plate 51 Standard Practices And Structures - General RFQ
451U3004-6 tube 51 Standard Practices And Structures - General RFQ
BCREF78121 gutter assy 51 Standard Practices And Structures - General RFQ
65B19048-5 drain instl 51 Standard Practices And Structures - General RFQ
457U2800PN1650370274 channel 51 Standard Practices And Structures - General RFQ
451U3004-19 tube 51 Standard Practices And Structures - General RFQ
65B17446-4 tube 51 Standard Practices And Structures - General RFQ
65B63858-2 tube 51 Standard Practices And Structures - General RFQ
BACG20AD233 grommet 51 Standard Practices And Structures - General RFQ
B0E2013-0273 hose 51 Standard Practices And Structures - General RFQ
65B17393-5 spacer 51 Standard Practices And Structures - General RFQ
457U2801-41 tube 51 Standard Practices And Structures - General RFQ
65B63855-6 tube 51 Standard Practices And Structures - General RFQ
116U5230-209 filler 51 Standard Practices And Structures - General RFQ
65B14975-11 tube 51 Standard Practices And Structures - General RFQ
65B63345-17 bracket assy 51 Standard Practices And Structures - General RFQ
65B26633-140 tube 51 Standard Practices And Structures - General RFQ
143N5441-22 tube 51 Standard Practices And Structures - General RFQ
65B17445-2 fitting instl 51 Standard Practices And Structures - General RFQ
65B26633-150 tube 51 Standard Practices And Structures - General RFQ
116U6115-4 rib assy 51 Standard Practices And Structures - General RFQ
116U6221-4 rib 51 Standard Practices And Structures - General RFQ
457U2800-174 tube 51 Standard Practices And Structures - General RFQ
457U2800-27 tube 51 Standard Practices And Structures - General RFQ
65B63859-26 tube 51 Standard Practices And Structures - General RFQ
65B63852-1 pan 51 Standard Practices And Structures - General RFQ
747-53-2788NC0180-1 fitting 51 Standard Practices And Structures - General RFQ
845B2102-45 tube assy 51 Standard Practices And Structures - General RFQ
747-53-2655-0233-1 spacer 51 Standard Practices And Structures - General RFQ
BACF3T01G13-10 filler 51 Standard Practices And Structures - General RFQ
65B63854-1 screen assy 51 Standard Practices And Structures - General RFQ
141N5270-42 drain tube 51 Standard Practices And Structures - General RFQ
747-53-2716-0026-2 fitting 51 Standard Practices And Structures - General RFQ
657N4420-1002 gutter instl 51 Standard Practices And Structures - General RFQ
116U3130-20 panel assy 51 Standard Practices And Structures - General RFQ
747-53-2740-0067-1 support 51 Standard Practices And Structures - General RFQ
451U3004-47 tube 51 Standard Practices And Structures - General RFQ
65B63855-14 tube 51 Standard Practices And Structures - General RFQ
65B12458-23 web assy 51 Standard Practices And Structures - General RFQ
116U3230-168 filler 51 Standard Practices And Structures - General RFQ
65B25770-2 drain instl 51 Standard Practices And Structures - General RFQ
451U3004-21 tube 51 Standard Practices And Structures - General RFQ
747-24-2282-0158-1 bracket 51 Standard Practices And Structures - General RFQ
65B19048-9 drain instl 51 Standard Practices And Structures - General RFQ
2621-007C valve 51 Standard Practices And Structures - General RFQ
284U1135-54 gutter assy 51 Standard Practices And Structures - General RFQ
BACD40AB08C0052A duct 51 Standard Practices And Structures - General RFQ
457U2815-70 bracket assy 51 Standard Practices And Structures - General RFQ
BACF3H09BC092AN filler 51 Standard Practices And Structures - General RFQ
BCREF71557 fitting 51 Standard Practices And Structures - General RFQ
457U2800-44 tube 51 Standard Practices And Structures - General RFQ
65B04221-610 plate 51 Standard Practices And Structures - General RFQ
845B2102-25 tube assy 51 Standard Practices And Structures - General RFQ
457U2815-25 bracket assy 51 Standard Practices And Structures - General RFQ
65B26633-141 tube 51 Standard Practices And Structures - General RFQ
631-10135-25 gusset 51 Standard Practices And Structures - General RFQ
BCREF119569 duct 51 Standard Practices And Structures - General RFQ
BCREF67476 bracket assy 51 Standard Practices And Structures - General RFQ
65B17459-38 sub kit assy 51 Standard Practices And Structures - General RFQ
457U2801-4 tube 51 Standard Practices And Structures - General RFQ
116U6220-2 rib 51 Standard Practices And Structures - General RFQ
814B1548-3 doubler 51 Standard Practices And Structures - General RFQ
814B2568-6 support 51 Standard Practices And Structures - General RFQ
747-53-2687-0137-2 fitting 51 Standard Practices And Structures - General RFQ
BCREF54659 tube 51 Standard Practices And Structures - General RFQ
453U3004-73 tube 51 Standard Practices And Structures - General RFQ
BACW10PMG10 washer 51 Standard Practices And Structures - General RFQ
BACB28AZ13A074Z bushing 51 Standard Practices And Structures - General RFQ
814B2568-4 support 51 Standard Practices And Structures - General RFQ
65B26632-3 tube 51 Standard Practices And Structures - General RFQ
116U6125-5 rib assy 51 Standard Practices And Structures - General RFQ
BCREF69979 fitting 51 Standard Practices And Structures - General RFQ
65B63857-73 tube 51 Standard Practices And Structures - General RFQ
65B26633-84 tube 51 Standard Practices And Structures - General RFQ
747-53-2740-0068RA3 spud assy 51 Standard Practices And Structures - General RFQ
116U6126-1 rib assy 51 Standard Practices And Structures - General RFQ
457U2801-3 tube 51 Standard Practices And Structures - General RFQ
BCREF89195 channel assy 51 Standard Practices And Structures - General RFQ
65B63857-52 tube 51 Standard Practices And Structures - General RFQ
65B17416-14 tank assy 51 Standard Practices And Structures - General RFQ
BCREF77618 fitting 51 Standard Practices And Structures - General RFQ
BCREF63097 fitting 51 Standard Practices And Structures - General RFQ
845B2102-61 support assy 51 Standard Practices And Structures - General RFQ
BACD40AB08C0180A duct 51 Standard Practices And Structures - General RFQ
147A5111-9 tube 51 Standard Practices And Structures - General RFQ
69B10671-9 cap assy 51 Standard Practices And Structures - General RFQ
015U1854-100 tube 51 Standard Practices And Structures - General RFQ
457U2800-88 tube 51 Standard Practices And Structures - General RFQ
747-53-2668NC0186-1 fitting 51 Standard Practices And Structures - General RFQ
BACD40A08-044-5A41 duct 51 Standard Practices And Structures - General RFQ
284U1136-7 plenum assy 51 Standard Practices And Structures - General RFQ
457U2800-155 tube 51 Standard Practices And Structures - General RFQ
141W7261-1 drain assy 51 Standard Practices And Structures - General RFQ
141N5273-3 cover 51 Standard Practices And Structures - General RFQ
BCREF83065 support assy 51 Standard Practices And Structures - General RFQ
69B15335-1 collector assy 51 Standard Practices And Structures - General RFQ
65B19048-4 drain instl 51 Standard Practices And Structures - General RFQ
BACB30MY8K16 bolt 51 Standard Practices And Structures - General RFQ
631-10135-21 support 51 Standard Practices And Structures - General RFQ
747-25-3372-0122-1 tube 51 Standard Practices And Structures - General RFQ
814B1548-16 support instl 51 Standard Practices And Structures - General RFQ
140W2810-5 plunger 51 Standard Practices And Structures - General RFQ
65B26633-142 tube 51 Standard Practices And Structures - General RFQ
65B17459-39 sub kit assy 51 Standard Practices And Structures - General RFQ
BCREF71633 angle 51 Standard Practices And Structures - General RFQ
65B04221-601 retainer 51 Standard Practices And Structures - General RFQ
116U6226-2 rib 51 Standard Practices And Structures - General RFQ
141N5272-1 retainer assy 51 Standard Practices And Structures - General RFQ
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