MIL-B-23958A, MILITARY SPECIFICATION: BRUSH, CLEANING, AIRCRAFT, METAL BRIGHTENING (03-APR-1967) [SUPERSEDING MIL-B-23958 AND MIL-B-6612]

MIL-B-23958A, MILITARY SPECIFICATION: BRUSH, CLEANING, AIRCRAFT, METAL BRIGHTENING (03-APR-1967) [SUPERSEDING MIL-B-23958 AND MIL-B-6612]., This specification establishes the requirements of brushes used to apply metal cleaners and brightening agents to aircraft metal surfaces.