The U.S. aircraft register, updated daily
Parts

Nut Lock

No failure report names the nut lock. 31 FAA approvals let 9 companies make a replacement nut lock, Aircraft Component Design LLC holding the most (19).

Approved replacement parts 31 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a nut lock and sell it as an approved part for the models named. These are the companies holding such approvals for a nut lock:

Aircraft Component Design LLC 19Ontic Engineering & Manufacturing INC 3Pacific Propeller INC 2Helicopter Support INC Services Division 2Wencor LLC (Formerly Dixie Aerospace LLC) 1Turbine Kinetics INC, Subsidiary of Heico CORP 1Soundair Aviation Services 1Rotair Industries INC 1Central Texas Aircraft Parts (Ctap) 1

For these models most: Sikorsky EH-60 (3), Cessna 336 (3), Sikorsky HH-60 (2), Airbus A321 (2), Airbus A320 (2), Airbus A319 (2), Sikorsky UH-60 (1), Sikorsky S-70 (1), Sikorsky S-61 (1), Pickering Aviation Inc UH-60 (1), Boeing 777 (1), Boeing 767 (1).

MakerPartReplacesFitsGrantedStatus
Soundair Aviation ServicesNut Lock SP7110-04-100279NTE-064Airbus SAS A319-131, A319-132, A320-2112026-06-17current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04General Electric... CF6-80E1A2, CF6-80E1A3, CF6-80E1A42021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Sixtyhawk TC LLC EH-60A, HH-60L2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04General Electric... CT7-5A2, CT7-5A3, CT7-7A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Ace Aeronautics LLC UH-60A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Timberline Helicopters Inc UH-60A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04General Electric... CF6-80A, CF6-80A1 CF6-80A2, CF6-80A32021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Pickering Aviation EH-60A, UH-60A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04BHI H60 Helicopters LLC UH-60A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Capitol Helicopters Inc. UH-60A, HH-60L2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Billings Flying Service Inc. UH-60A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04High Performance... UH-60A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Unical Aviation Inc. UH-60A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Sikorsky Aircraft Corporation S-70 (UH-60A, UH-60L), S-70C2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Northwest Rotorcraft LLC UH-60A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Skydance Blackhawk... UH-60A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04PJ Helicopters Inc. UH-60A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Carson Helicopters UH-60A2021-07-22current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04Delta Enterprise EH-60A, UH-60A2021-07-22current
Wencor LLC (Formerly Dixie Aerospace LLC)Nut Lock 340860WE340860Airbus A318 Model -111, A318 Model -112,...2020-01-07current
Aircraft Component Design LLCNut-Lock J490P04ACDJ490P04General Electric CT7-8, CT7-8A, CT7-8A12016-07-26current
Central Texas Aircraft Parts (Ctap)Nut Lock 291005-24A6473Twin Commander 500-A, 500-B, 500-U2013-06-13current
Helicopter Support INC Services DivisionNUT- LOCK, #2 BEARING 839B312P1839B312P1General Electric Company CT58-140-1, -140-2, -110.2011-10-16current
Turbine Kinetics INC, Subsidiary of Heico CORPNut-Lock KTSN4441SN4441Boeing 757-200 Series, 757-200PF Series,...2011-04-17current
Helicopter Support INC Services DivisionNUT- LOCK, #2 BEARING A839B312P1839B312P1General Electric Company CT58-140-1, -140-2, -110.2010-11-14current
Ontic Engineering & Manufacturing INCNut-Lock 3617-028Modification PartCessna 3362007-05-14current
Ontic Engineering & Manufacturing INCNut-Lock 3617-028Modification PartCessna 3362006-03-13current
Ontic Engineering & Manufacturing INCNut-Lock 3617-028Modification PartCessna 3362006-01-30current
Pacific Propeller INCNut Lock 6527128 thru 65271376527128 thru 6527137Pacific Propeller Aeroproducts A6441FN 606/606A2005-06-27current
Pacific Propeller INCNut Lock 6527128 thru 65271376527128 thru 6527137Pacific Propeller Aeroproducts A6441FN 606/606A2001-09-13current
Rotair Industries INCNut Lock R6135-66619-2S6135-66619-2Sikorsky S-61L1993-07-06current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.