Type : Award
The T-21 test stands accomplish the same objective for T56 turboprop engines.Part Number National Stock Number NomenclatureA/M37T-20 4920-01-041-5863 TEST STAND, AIRCRAFT ENGINEA/M37T-20A 4920-01-515-4970 TEST STAND, AIRCRAFT ENGINEA/M37T-20B 4920-01-325-8120 TEST STAND, AIRCRAFT ENGINEA/M37T-20C 4920-01-470-6508 TEST STAND, AIRCRAFT ENGINEA/M37T-21 4920-01-041-5862 TEST STAND, AIRCRAFT ENGINEA/M37T-21D 4920-01-458-2053 TEST STAND, AIRCRAFT ENGINEServices