ATA 85 — Reciprocating Engine

20,859 parts classified under this chapter

Reliability rollup

91%Median scrap propensity

2,637 parts · 5,796 SDR reports

From FAA Service Difficulty Reports

Part Number	Description	Manufacturer	Airframe	ATA	Category	Status
25C-56	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-56	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-56 P03	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-56 P07	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-56 P12	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-57	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-57	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-57 P03	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-57 P07	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-57P12	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-58	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-58	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-58 P03	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-58 P07	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-58 P12	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-59	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-59	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-59 P03	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-59 P07	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-59 P12	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-60 P03	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-60 P07	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-60 P12	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-61	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-61	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-61 P03	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-61 P07	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-61 P12	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-62	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-62	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-62 P03	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-62 P07	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-62 P12	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-63	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-63	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-63 P07	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-63 P12	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-63P03	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-64	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-64	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-64 P03	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-64 P07	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-64 P12	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-7	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-7	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-7 P03	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-7 P03	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-7 P07	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-7 P07	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM
25C-7 P12	Stud, 1/4 Dia. Coarse Thread	—	—	85	Engine Accessories	OEM