BS 1657:1950 Specification for buttress threads standard by BSI Group, 08/17/1950
BS 519:1950 Specification for tractive armature direct current neutral-polar line relays for railway signalling standard by BSI Group, 07/14/1950
BS 1655:1950 Specification for flanged automatic control valves for the process control industry (face-to-face dimensions) standard by BSI Group, 07/12/1950
BS SP 22-27:1950 Specifications for B.A. washers for aircraft purposes (primarily for instrument use) standard by BSI Group, 06/22/1950
BS 870:1950 Specification for external micro meters standard by BSI Group, 06/09/1950
BS G 125:1950 Specification for turn and slip indicators for aircraft purposes standard by BSI Group, 06/07/1950
BS 811:1950 Specification for cycle (B.S.C.) threads (formerly known as C.E.I. threads) standard by BSI Group, 05/24/1950
BS SP 21:1950 Specification for lubricating nipples for aircraft purposes standard by BSI Group, 04/28/1950
BS 546:1950 Specification. Two-pole and earthing-pin plugs, socket-outlets and socket-outlet adaptors standard by BSI Group, 03/16/1950
BS G 123:1949 Specification for aircraft magnetic compass, remote-reading (non-stabilized) standard by BSI Group, 12/15/1949
BS G 122:1949 Specification for aircraft magnetic compass, remote-reading (gyro-stabilized) standard by BSI Group, 12/15/1949
BS M 22:1949 Specification for silica gel acid activated for aircraft purposes standard by BSI Group, 10/17/1949